Parker Excavating v. LaFarge West , 863 F.3d 1213 ( 2017 )


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  •                                                                                    FILED
    United States Court of Appeals
    PUBLISH                                 Tenth Circuit
    UNITED STATES COURT OF APPEALS                           July 18, 2017
    Elisabeth A. Shumaker
    FOR THE TENTH CIRCUIT                              Clerk of Court
    _________________________________
    PARKER EXCAVATING, INC., a
    Colorado corporation,
    Plaintiff - Appellant,
    v.                                                            No. 16-1225
    LAFARGE WEST, INC., A Delaware
    corporation; MARTIN MARIETTA
    MATERIALS, INC., a North Carolina
    corporation; FIDELITY AND DEPOSIT
    COMPANY OF MARYLAND, a
    Maryland corporation; NICK GUERRA,
    Defendants - Appellees,
    ALF RANDALL, in his individual
    capacity; ROBERT SCHMIDT, in his
    individual capacity,
    Defendants.
    _________________________________
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF COLORADO
    (D.C. No. 1:14-CV-01534-LTB-MJW)
    _________________________________
    Jennifer K. Fischer, Fischer & Fischer, P.C., Denver, Colorado, appearing for Plaintiff-
    Appellant.
    William T. O’Connell, III (Larry S. McClung and Rachel Ollar Entrican, with him on the
    brief), Wells, Anderson & Race, LLC, Denver, Colorado, appearing for Appellees
    LaFarge West, Inc. and Fidelity and Deposit Company of Maryland.
    Van Aaron Hughes (Jonathan G. Pray and Hannah M. Caplan, with him on the brief),
    Brownstein Hyatt Farber Schreck, LLP, Denver, Colorado, appearing for Appellees
    Martin Marietta Materials, Inc. and Nick Guerra.
    _________________________________
    Before HARTZ, MATHESON, and PHILLIPS, Circuit Judges.
    _________________________________
    MATHESON, Circuit Judge.
    _________________________________
    This appeal arises from a grant of summary judgment against Plaintiff-
    Appellant Parker Excavating, Inc. (“PEI”) on its civil rights claim against
    Defendants-Appellees Lafarge West, Inc. (“Lafarge”),1 Martin Marietta Minerals,
    Inc. (“MMM”), and Nick Guerra, an employee of Lafarge and MMM.
    Lafarge, a construction company, was the primary contractor on a paving
    project for Pueblo County, Colorado (“the County”). PEI, a Native American-owned
    construction company, was a subcontractor for Lafarge. MMM replaced Lafarge as
    the primary contractor. PEI’s participation in the project was terminated before it
    entered into a new subcontract with MMM.
    PEI alleged Lafarge retaliated against it with a letter of reprimand and a
    demand to sign letters of apology after PEI Vice President Greg Parker complained
    that County employees discriminated against PEI on the basis of its Native American
    ownership. PEI alleged Lafarge, MMM, and Mr. Guerra retaliated against it when it
    1
    Fidelity & Deposit Insurance Company (“Fidelity”), Lafarge’s surety, is also
    listed as an Appellee. We do not consider Fidelity a proper party on appeal. The
    only claim on appeal, a 42 U.S.C. § 1981 claim, was not alleged against Fidelity.
    The district court declined to exercise supplemental jurisdiction over the only claim
    that was raised against Fidelity.
    -2-
    was asked to vacate the project after Mr. Parker made further complaints of
    discrimination. PEI based the foregoing on 42 U.S.C. § 1981, which prohibits racial
    discrimination in contracts and retaliation for opposing such discrimination, 42
    U.S.C. § 1981, CBOCS West, Inc. v. Humphries, 
    553 U.S. 442
    , 445-46 (2008).
    In separate orders, the district court granted summary judgment on PEI’s
    § 1981 retaliation claim to (1) MMM and Mr. Guerra because PEI could not show its
    opposition to County employees’ discrimination was “protected” opposition under
    § 1981 and (2) Lafarge because PEI could not show Lafarge took an adverse action
    against it.
    Exercising jurisdiction under 28 U.S.C. § 1291, we affirm the grant of
    summary judgment to MMM and Mr. Guerra and reverse the grant of summary
    judgment to Lafarge.
    In their summary judgment motion, MMM and Mr. Guerra argued that PEI
    could not base its § 1981 retaliation claim on its opposition to the alleged
    discriminatory conduct of third-party County employees. PEI failed to respond to
    this argument in district court and also has failed to argue on appeal that the district
    court plainly erred in granting summary judgment on this ground. Under these
    circumstances, we affirm as to MMM and Mr. Guerra.
    In its summary judgment motion, Lafarge argued PEI could not show Lafarge
    took an adverse action against it. The district court agreed and granted summary
    judgment on this ground. On appeal, PEI argues there is a genuine issue of material
    -3-
    fact on this question. We agree and reverse the grant of summary judgment on the
    § 1981 retaliation claim as to Lafarge.
    I. BACKGROUND
    A. Factual Background
    We present the following facts in the light most favorable to PEI, the non-
    moving party on summary judgment. Twigg v. Hawker Beechcraft Corp., 
    659 F.3d 987
    , 997 (10th Cir. 2011).
    PEI is associated with the Choctaw Tribe. Mr. Parker is PEI’s Vice President.
    Mr. Guerra was Lafarge’s estimator and project manager, and then worked for
    MMM.
    In July 2011, the County hired Lafarge to be the primary contractor on a
    roadway and drainage improvement project on South McCulloch Blvd. (“the
    McCulloch Project”). Lafarge subcontracted with PEI for excavation and traffic
    control work.
    Two provisions of the subcontract are especially relevant. First, in lieu of
    PEI’s providing a performance bond, Lafarge agreed that it would retain 50 percent
    of the funds owed to PEI until PEI completed its work. Second, the arbitration clause
    required that “[a]ny claim or dispute arising out of this Subcontract . . . be subject to
    and determined by binding arbitration . . . .” App., Vol. IV at 27.
    We present the remaining facts to correspond with the elements of PEI’s
    § 1981 retaliation claim: (1) the County employees’ alleged discriminatory conduct;
    -4-
    (2) PEI’s alleged opposition to that discriminatory conduct; and (3) the Appellees’
    alleged retaliation for that opposition.
    1. Alleged Discrimination, Opposition, and Retaliation – June to July 2011
    a. Alleged discriminatory conduct
    PEI contends Mr. Parker was the target of discriminatory conduct during a pre-
    construction meeting on June 28, 2011, attended by County representatives, Lafarge
    employees, and other contractors on the McCulloch Project. In that meeting, County
    employee Alf Randall wadded up PEI’s proposed traffic control diagrams and threw
    them in the trash, calling them “bullshit.” App., Vol. V at 130. PEI alleges Mr.
    Randall acted out of discriminatory animus toward PEI based on a comment he had
    made during a previous, unrelated construction project (the “William White
    Project”).2 During a payment dispute on that project, Mr. Randall allegedly told Mr.
    Parker that he believed “affirmative action was bullshit.” 
    Id. at 90.
    2. Alleged opposition to discrimination
    On July 12, 2011, at Mr. Guerra’s suggestion, Mr. Parker called County
    Commissioner John Cordova to complain about Mr. Randall’s actions during the pre-
    construction meeting. Mr. Parker spoke with the Commissioner over a speakerphone
    in Mr. Guerra’s presence.
    During the phone call, Mr. Parker said Mr. Randall’s behavior was due to
    PEI’s Native American ownership, citing Mr. Randall’s comment during the William
    White Project about affirmative action.
    2
    The date of Mr. Randall’s comment is unclear.
    -5-
    3. Alleged retaliatory acts
    On July 13, 2011—the day after the phone call to the Commissioner—Mr.
    Guerra sent Mr. Parker a letter of reprimand on behalf of Lafarge. The letter stated
    Lafarge had been informed that Mr. Parker had “contacted various public officials” to
    discuss the incident between Mr. Parker and Mr. Randall. App., Vol. V at 154. The
    letter explained that, in doing so, Mr. Parker had “circumvented the proper dispute
    resolution process as outlined in [the] subcontract agreement with Lafarge and [had]
    put Lafarge at risk of being disqualified as General Contractor on the McCulloch . . .
    project.” Id.3 The letter stated it was PEI’s “first and final notice to follow the
    proper procedure for dispute resolution” and that PEI’s subcontract would be
    terminated if Mr. Parker contacted any County official regarding any dispute on the
    McCulloch Project moving forward. 
    Id. Mr. Guerra
    further required Mr. Parker to sign letters to Mr. Randall and
    Robert Schmidt, another County employee, apologizing for “circumventing the
    proper procedure for dispute resolution” for disputes between Mr. Parker and Mr.
    Randall on the McCulloch Project. 
    Id. at 155,
    156.
    3
    The letter does not make clear what provision of the subcontract outlined the
    proper dispute resolution process, but it appears to be the arbitration provision
    discussed above.
    -6-
    1. Alleged Discrimination, Opposition, and Retaliation – November to
    December 2011
    a. Alleged discriminatory conduct
    In addition to the June 28, 2011 incident of alleged discrimination, PEI
    identifies three other allegedly discriminatory acts.
    First, in October or November 2011, Mr. Schmidt confronted Mr. Parker and
    called him a “f***ing liar” for not conducting proper inspections at the work site. 
    Id. at 129.
    Second, in another meeting, Mr. Schmidt called Mr. Parker “stupid” and a
    “dumbass,” and poked him in the chest three times. 
    Id. Third, Mr.
    Randall made unreasonable, unjustified demands on PEI, including
    requiring PEI to change or move construction signs without good cause.
    b. Alleged opposition to discrimination
    Along with Mr. Parker’s phone call to Commissioner Cordova in July 2011,
    PEI alleges it opposed discrimination on two other occasions.
    First, on November 3, 2011, Mr. Parker wrote a letter to Mr. Guerra
    complaining about “perceived discrimination” committed by the County during the
    McCulloch Project. 
    Id. at 179.
    Mr. Parker explained how the County made
    unjustified demands of PEI during the project that “seem[ed] to indicate a disregard
    for [PEI], if not a direct attempt to keep PEI from performing well on the project.”
    
    Id. at 180.
    Mr. Parker faulted the County and did not “hold Lafarge responsible for
    the actions taken against PEI thus far.” 
    Id. at 181.
    -7-
    Second, on December 7, 2011, Mr. Parker wrote a letter to Mr. Randall in
    response to a letter from the County documenting PEI’s deficiencies on the project.4
    The letter provided justifications for each of PEI’s purported deficiencies. It also
    stated that “[t]he discrimination shown by Pueblo County towards PEI”—including
    the County’s complaints about the traffic control plans and its constant demands for
    changes to the plans—was “unwarranted.” App., Vol. III at 161. The letter also
    referenced Mr. Schmidt’s “belligerent” statements during a November 22, 2011
    meeting. 
    Id. at 162.
    2. Alleged retaliatory acts
    PEI alleges a series of retaliatory acts between December 12 and December 16,
    2011, that were prompted by a December 12 letter from Mr. Randall to Mr. Guerra.
    In that letter, Mr. Randall wrote:
    This letter is a follow-up to my letter of December 6, 2011
    relative to deficiencies in the traffic control on the above
    project. The reaction to that letter by your traffic control
    subcontractor, specifically Mr. Greg Parker, was to: a) refuse
    to make certain changes, b) state that any further
    conversations with the County relative to traffic control
    would only happen with his attorney present, c) accuse my
    staff of discrimination against him, and d) become verbally
    abusive and generally belligerent towards members of my
    staff.   This conduct is not acceptable for contractors
    performing work on projects for Pueblo County, nor for their
    subcontractors.     Please take whatever steps you deem
    appropriate to assure that this conduct does not continue.
    App., Vol. IV at 84.
    4
    Mr. Parker hand delivered the letter to Mr. Guerra and directed him to give it
    to Mr. Randall.
    -8-
    On December 12, 2011, the same day as Mr. Randall’s letter, Mr. Guerra wrote
    Mr. Parker a letter stating that MMM had taken over for Lafarge as the County’s
    contractor for the McCulloch Project. It said that MMM would require a new
    subcontract with PEI and that, unlike Lafarge, MMM would require a bond. It also
    explained that, due to Mr. Parker’s earlier statement that PEI could not post a bond,
    MMM requested that PEI vacate the project. The letter was on MMM letterhead, but
    Mr. Guerra signed it as a Lafarge employee. It showed that copies were sent to four
    Lafarge managers.
    On December 15, 2011, Mr. Guerra wrote Mr. Parker another letter reiterating
    the points in his December 12 letter. Mr. Guerra signed it as an MMM employee. It
    showed that copies were sent to three of the same managers who were listed in his
    December 12 letter, this time identified as managers of MMM rather than Lafarge.
    On December 16, 2011, Mr. Guerra sent a third letter requesting that PEI
    vacate the project.
    B. Procedural Background
    On May 30, 2014, PEI sued Lafarge, Fidelity, MMM, Mr. Guerra, Mr.
    Randall, and Mr. Schmidt in the United States District Court for the District of
    Colorado. PEI’s first amended complaint, the operative one here, alleged a
    retaliation claim under 42 U.S.C. § 1981 against Lafarge, MMM, Mr. Guerra, Mr.
    Randall, and Mr. Schmidt. It further alleged a discrimination claim under 42 U.S.C.
    -9-
    § 1983 against Mr. Randall, a retaliation claim under § 1983 against Mr. Randall and
    Mr. Schmidt, and various state contract claims against Lafarge, MMM, and Fidelity.5
    Three motions for summary judgment were filed by (1) MMM and Mr. Guerra,
    (2) Lafarge and Fidelity, and (3) Mr. Randall and Mr. Schmidt. Each motion
    requested summary judgment on PEI’s § 1981 retaliation claim. In their motion, Mr.
    Randall and Mr. Schmidt also asked for summary judgment on the § 1983 retaliation
    and discrimination claims against them. PEI responded to all three motions in
    consolidated briefing.
    The district court entered three orders on the respective summary judgment
    motions, granting summary judgment on the § 1981 retaliation claim for (1) MMM
    and Mr. Guerra, (2) Lafarge, and (3) Mr. Randall and Mr. Schmidt. The court also
    granted summary judgment in favor of Mr. Randall and Mr. Schmidt on the § 1983
    claims against them based on qualified immunity. The court declined to exercise
    supplemental jurisdiction over the remaining state law claims. After the court
    entered final judgment against PEI on the § 1981 retaliation claim, this appeal
    followed.
    This appeal concerns only the first two orders because Mr. Randall and Mr.
    Schmidt have since been dismissed from the case.
    5
    PEI originally filed the state law claims in state court but requested they be
    dismissed and then refiled them in the federal action.
    - 10 -
    1. First Summary Judgment Order
    When MMM and Mr. Guerra moved for summary judgment on the § 1981
    claim, they argued they were not proper defendants because PEI’s claim concerned
    retaliation for PEI’s opposition to the alleged discriminatory conduct of third-party
    County employees, not the conduct of MMM or Mr. Guerra. The district court
    agreed, noting PEI had not cited any authority to contradict the defendants’
    argument. It therefore granted summary judgment in favor of MMM and Mr. Guerra.
    2. Second Summary Judgment Order
    Lafarge moved for summary judgment on the § 1981 retaliation claim, but on
    the different ground that it had not taken any adverse action against PEI. Lafarge
    argued its involvement on the project had ended on December 11, 2011, when MMM
    had taken over for Lafarge on the project, and PEI was not terminated until
    December 17, 2011. The parties also disputed in district court whether Lafarge was
    responsible for taking other adverse actions against PEI. The district court granted
    summary judgment in favor of Lafarge. It ruled that MMM, not Lafarge, was
    responsible for PEI’s termination, and that Lafarge was not responsible for any other
    adverse actions.
    II. DISCUSSION
    We review whether the district court properly granted summary judgment on
    PEI’s § 1981 retaliation claim for (1) MMM and Mr. Guerra and (2) Lafarge.
    We affirm the grant of summary judgment on the § 1981 retaliation claim as to
    MMM and Mr. Guerra because PEI forfeited its argument that its opposition to the
    - 11 -
    County’s third-party discriminatory conduct qualifies as protected opposition for its
    § 1981 retaliation claim, and has not argued the district court plainly erred when it
    granted summary judgment on this ground.
    We reverse the grant of summary judgment on the § 1981 retaliation claim as
    to Lafarge because the district court erred in holding PEI could not show Lafarge
    took adverse actions against it.
    A. Standard of Review
    “We review a district court’s grant of summary judgment de novo, applying
    the same legal standard as the district court.” 
    Twigg, 659 F.3d at 997
    . “The court
    shall grant summary judgment if the movant shows that there is no genuine dispute as
    to any material fact and the movant is entitled to judgment as a matter of law.” Fed.
    R. Civ. P. 56(a). “In applying this standard, we view the evidence and the reasonable
    inferences to be drawn from the evidence in the light most favorable to the
    nonmoving party.” 
    Twigg, 659 F.3d at 997
    .
    B. Legal Standards
    PEI’s claim is based on a provision from the Civil Rights Act of 1866. Under 42
    U.S.C. § 1981(a),
    All persons within the jurisdiction of the United States
    shall have the same right in every State and Territory to
    make and enforce contracts, to sue, be parties, give
    evidence, and to the full and equal benefit of all laws and
    proceedings for the security of persons and property as is
    enjoyed by white citizens, and shall be subject to like
    punishment, pains, penalties, taxes, licenses, and exactions
    of every kind, and to no other.
    - 12 -
    The statute “prohibits not only racial discrimination but also retaliation against those
    who oppose it.” Univ. of Tex. Sw. Med. Ctr. v. Nassar, 
    133 S. Ct. 2517
    , 2529 (2013)
    (citing 
    CBOCS, 553 U.S. at 445
    ).
    A corporation can be a § 1981 plaintiff when it has “acquired a racial identity,
    either as a matter of law or by imputation . . . .” Thinket Ink Info. Res., Inc. v. Sun
    Microsystems, Inc., 
    368 F.3d 1053
    , 1059 (9th Cir. 2004); see also Allstate Sweeping,
    LLC v. Black, 
    706 F.3d 1261
    , 1265 (10th Cir. 2013) (providing that an independent
    contracting company could bring a claim under § 1981).
    When courts consider § 1981 retaliation claims, “the principles set forth in
    Title VII retaliation cases apply with equal force . . . .” 
    Twigg, 659 F.3d at 998
    . As
    with a Title VII retaliation claim, “a plaintiff bringing a § 1981 retaliation claim
    must establish that retaliation played a part in the employment decision . . . .” 
    Id. (quotations omitted).
    This can be done in two ways. 
    Id. First, a
    plaintiff can show
    that retaliatory animus played a “motivating part” in the employment decision. 
    Id. (quotations omitted).
    Second, a plaintiff can rely on the burden-shifting framework
    set forth in McDonnell Douglas Corp. v. Green, 
    411 U.S. 792
    (1973), to prove
    retaliation indirectly. 
    Id. On appeal,
    PEI relies only on the McDonnell Douglas framework. Under this
    framework, the plaintiff must make out a prima facie case of retaliation by showing
    that: (1) it engaged in opposition to racial discrimination that is protected under the
    statute; (2) a reasonable person would have found the challenged action materially
    adverse; and (3) a causal connection existed between the protected activity and the
    - 13 -
    adverse action. 
    Id. The burden
    then shifts to the alleged retaliator to offer a
    legitimate, nonretaliatory reason for its conduct. 
    Id. If the
    employer satisfies this
    burden, the plaintiff must show the employer’s reason was merely a pretext for
    retaliation. 
    Id. PEI’s appeal
    of the first summary judgment order as to MMM and Mr. Guerra
    concerns the first element of the prima facie case, specifically whether PEI engaged in
    “protected opposition.” Were PEI’s complaints about the alleged discrimination of
    County employees Mr. Randall and Mr. Schmidt “protected opposition” for purposes of a
    retaliation claim under § 1981?
    PEI’s appeal of the second summary judgment order as to Lafarge relates to the
    second element of the prima facie case. Is there a triable issue of fact that Lafarge
    terminated PEI?
    C. Analysis
    We address the grant of summary judgment on the § 1981 retaliation claim
    first as to MMM and Mr. Guerra, and then as to Lafarge.
    1. First Summary Judgment Order (MMM and Mr. Guerra)
    We affirm the grant of summary judgment on the § 1981 retaliation claim for
    MMM and Mr. Guerra because PEI has forfeited any argument that its opposition to
    third-party discriminatory conduct of County employees Mr. Randall and Mr.
    Schmidt qualifies as “protected opposition” capable of supporting a retaliation claim
    against MMM and Mr. Guerra under § 1981.
    - 14 -
    PEI’s amended complaint alleged MMM and Mr. Guerra violated § 1981 by
    retaliating against it for opposing discriminatory conduct of the third-party County
    employees. MMM and Mr. Guerra’s summary judgment motion argued that PEI
    could not satisfy the first prima facie element because the claim was based on PEI’s
    opposition to discriminatory conduct of third parties—County employees Mr.
    Randall and Mr. Schmidt. PEI did not respond to this argument in its consolidated
    briefing opposing summary judgment. The district court granted summary judgment
    on the ground that MMM and Mr. Guerra could not be liable for retaliation that was
    based on PEI’s opposition to the County employees’ alleged discriminatory conduct.
    On appeal, PEI attempts to argue it can satisfy the first element of its prima
    facie case because its opposition to the County employees’ alleged discrimination
    amounts to “protected opposition” under § 1981. Because it failed to present any
    such argument to the district court, it cannot obtain relief on appeal unless it shows
    the district court plainly erred in granting summary judgment. PEI has not attempted
    to do so, and its appeal as to MMM and Mr. Guerra therefore fails.
    a. Forfeiture and plain error
    When a plaintiff raises a legal theory on appeal that was not raised in district court,
    we consider that theory forfeited. Richison v. Ernest Grp., Inc., 
    634 F.3d 1123
    , 1127-28
    (10th Cir. 2011). An appellant’s failure to argue for plain error on appeal “marks the end
    of the road for an argument for reversal not first presented to the district court.” 
    Id. at 1131.
    “To show plain error, a party must establish the presence of (1) error, (2) that is
    - 15 -
    plain, which (3) affects substantial rights, and which (4) seriously affects the fairness,
    integrity, or public reputation of judicial proceedings.” 
    Id. at 1128.
    b. PEI’s opposition to third-party conduct
    On appeal, PEI points to three instances of opposition to discrimination it
    asserts were “protected” under § 1981: (1) Mr. Parker’s July 12, 2011 call to County
    Commissioner Cordova; (2) his November 3, 2011 letter to Mr. Guerra, and (3) his
    December 7, 2011 letter to Mr. Randall.6 PEI acknowledges that all three were
    responses to acts of “third party” County employees. See Aplt. Br. at 2 (presenting as
    an issue on appeal whether the “conduct of a third-party” could serve as the basis for
    its § 1981 retaliation claim); see also Oral Arg. at 5:38-43 (conceding County
    employees were third parties).
    c. The parties’ district court arguments and the district court’s order
    In their summary judgment motion, MMM and Mr. Guerra argued that PEI’s
    alleged opposition to the third-party County employees’ discrimination was not
    “protected” under § 1981 and thus could not satisfy the first element of a prima facie
    retaliation claim. See App., Vol. I at 194-95. They argued, citing cases, that
    “[f]ederal courts have consistently rejected retaliation claims based on a complaint of
    a third party’s alleged discrimination where the plaintiff makes no affirmative
    showing of the defendant’s own discriminatory intent or that the defendant had any
    6
    MMM and Mr. Guerra do not contest that these actions put them on notice of
    PEI’s opposition to alleged discrimination. See Petersen v. Utah Dep’t of Corr., 
    302 F.3d 1182
    , 1187 (10th Cir. 2002) (providing that a retaliation claim requires the
    defendant to be on notice the plaintiff was engaging in protected opposition).
    - 16 -
    duty or authority to prevent the discriminatory conduct of the third party.” 
    Id. at 194.
    We refer to this as MMM and Mr. Guerra’s “third-party argument.”
    PEI failed to respond to this argument in district court. Although PEI asserted
    that it engaged in “protected activity,” it provided no legal argument or authority to
    show why Mr. Parker’s conduct qualified as protected opposition under § 1981. See
    App., Vol. 1 at 265, 279; Vol. II at 6, 17, 21, 25. Indeed, in its 67 pages of
    responsive briefing in district court, PEI never argued it could satisfy the first
    element of its prima facie case by opposing third-party discrimination, despite
    acknowledging that “[t]he Defendants” (referring to all the Defendants collectively,
    and not just MMM and Mr. Guerra), had argued PEI could not show it engaged in
    protected activity. App., Vol. II at 9.
    In its first summary judgment order, the district court noted PEI had failed to
    cite any authority to contradict MMM and Mr. Guerra’s third-party argument that it
    had not engaged in protected opposition. See App., Vol. II at 110. Analogizing to
    Title VII, which “focus[es] . . . on whether the employee opposed an unlawful
    employment practice by the employer[,]” the court concluded that PEI must oppose
    discriminatory conduct of MMM and Mr. Guerra—not of third-party County
    employees over whom the defendants had no authority or control—to succeed in its
    § 1981 retaliation claim. 
    Id. at 110-11.
    d. PEI’s argument on appeal
    For the first time on appeal, PEI attempts to argue why its opposition to the
    County employees’ alleged discrimination was “protected” for purposes of its § 1981
    - 17 -
    claim. Attempting to draw from the Title VII context, it argues that the County
    employees’ third-party discriminatory conduct can be imputed to MMM and Mr.
    Guerra, which we call PEI’s “imputation argument.” Aplt. Br. at 29-31 (MMM);
    Aplt. Br. at 57 (incorporating its arguments against MMM as to Mr. Guerra). PEI’s
    contention is that MMM and Mr. Guerra “carried out the discriminatory preference of
    the [County]—the third party that committed the alleged discriminatory acts—and
    therefore is liable for retaliation.” 
    Id. at 30.
    This argument is PEI’s sole argument
    on appeal to respond to MMM and Mr. Guerra’s third-party argument.7
    e. Forfeiture and plain error
    MMM and Mr. Guerra argue that PEI forfeited its imputation argument by
    failing to raise it first in district court. We agree. Further, PEI has failed to argue the
    district court’s decision to accept MMM and Mr. Guerra’s third-party argument was
    plain error. Without a showing of plain error, we will not reverse the grant of
    summary judgment. See 
    Richison, 634 F.3d at 1131
    .8
    7
    For example, PEI did not argue the statutory language of § 1981 supported its
    third-party theory and did not challenge that the County employees were actually
    third parties.
    8
    When asked at oral argument to cite the best Tenth Circuit case supporting
    PEI’s imputation argument, PEI’s counsel responded, “There is no Tenth Circuit
    case. It is a case of first impression in this circuit.” Oral Arg. at 8:25-31. Thus, by
    PEI’s own admission, it would have faced long odds arguing that an error here was
    “plain.” See United States v. Turrietta, 
    696 F.3d 972
    , 981 (10th Cir. 2012) (“[W]here
    the law is unsettled, a matter of first impression will generally preclude a finding of
    plain error.”).
    - 18 -
    f. PEI’s arguments against forfeiture
    Rather than argue for plain error, PEI contends it did not forfeit its imputation
    argument because, to preserve the issue, it needed only to allege its retaliation claim in
    district court and then could present any supportive legal theory for the first time on
    appeal. PEI relies on the Supreme Court’s statement that “[o]nce a federal claim is
    properly presented, a party can make any argument in support of that claim; parties are
    not limited to the precise arguments they made below.” Aplt. Reply Br. at 12 (quoting
    Yee v. City of Escondido, 
    503 U.S. 519
    , 534 (1992)).
    PEI’s reliance on Yee is misplaced. The quote from Yee was made in the context
    of deciding whether the Court would consider an argument outside the scope of the grant
    of certiorari. See 
    Yee, 503 U.S. at 534-38
    . The statement had nothing to do with an
    appellant’s raising arguments on appeal to a circuit court that were not first raised in
    district court. See Thomas M. Cooley Law Sch. v. Kurzon Strauss, LLP, 
    759 F.3d 522
    ,
    529 (6th Cir. 2014) (distinguishing Yee as based on “prudential limitations applicable to
    the Supreme Court’s certiorari jurisdiction” and “not alter[ing] [the court’s] well-settled
    rule that ‘this court declines to entertain arguments not presented in the first instance to
    the district court’”). PEI’s extension of Yee would conflict with our “long-standing
    practice” of reviewing newly raised legal arguments only under the plain-error standard.
    
    Richison, 634 F.3d at 1128
    .
    PEI’s specific argument that it did not forfeit its imputation argument finds no
    legal support. It cannot rely on the mere fact that it alleged a § 1981 claim to justify
    making new arguments on appeal. The complaint’s allegations cannot substitute for
    - 19 -
    responding to MMM and Mr. Guerra’s argument in their summary judgment motion.
    Although a movant bears the burden to show summary judgment is appropriate, “[t]he
    nonmovant also must demonstrate a plausible ground for his claim or defense,” including
    a viable legal theory that would entitle the nonmovant to relief. 10A Charles Alan
    Wright & Arthur R. Miller, Federal Practice & Procedure § 2727.2 (4th ed. 2017); see
    also Windon Third Oil & Gas P’ship v. FDIC, 
    805 F.2d 342
    , 346 (10th Cir. 1986)
    (providing that a genuine issue of fact to survive summary judgment “must be predicated
    on a viable legal theory” (quotations omitted)), overruled on other grounds by Anixter v.
    Home-Stake Prod. Co., 
    77 F.3d 1215
    (10th Cir. 1996); Dorris v. Absher, 
    179 F.3d 420
    ,
    426 (6th Cir. 1999) (providing summary judgment is appropriate when the plaintiffs had
    not presented “a viable legal theory under which liability [could] attach to [the
    defendant]”). MMM and Mr. Guerra put PEI on notice that it needed to present such a
    legal theory to survive summary judgment, and PEI did not do so.
    g. Richison supports forfeiture
    PEI’s forfeited argument here is analogous to the one in Richison. In Richison,
    the defendants had moved for summary judgment, arguing that the plaintiff’s claims
    were time-barred based on the undisputed 
    facts. 634 F.3d at 1126
    . “On notice and in
    the face of [the defendants’] challenge,” the plaintiff argued only that the facts were
    in dispute, and “[a]t no point” introduced his legal theory that his claims were not
    time-barred. 
    Id. at 1127.
    The district court agreed with the defendants and granted
    summary judgment. 
    Id. On appeal,
    the plaintiff argued for the first time that the
    claims were not time-barred. 
    Id. We declined
    to reverse on this basis because the
    - 20 -
    plaintiff forfeited his time-bar argument by failing to raise it in district court and
    failing to show plain error on appeal. 
    Id. at 1128,
    1130-31.
    Like the defendants’ challenge to the timeliness of the claims in Richison,
    MMM and Mr. Guerra put PEI on notice of their challenge that PEI could not rely on
    opposition to third-party discrimination to support its § 1981 retaliation claim against
    them. And, like the plaintiff in Richison, PEI failed to respond to this challenge in
    district court with the legal argument it now presents on appeal. Thus, as in
    Richison, we do not address PEI’s imputation argument raised for the first time on
    appeal in the absence of an argument that the district court plainly erred.
    *   *    *    *
    In sum, because PEI had an opportunity to present its imputation argument as a
    response to MMM and Mr. Guerra’s third-party argument in district court but failed
    to do so, it forfeited the only argument it has presented on appeal that it engaged in
    “protected opposition” under § 1981. And because it did not argue the district court
    plainly erred in granting summary judgment, we affirm as to MMM and Mr. Guerra.
    2. Second Summary Judgment Order (Lafarge)
    Lafarge asks us to affirm the district court’s ruling that PEI did not show
    Lafarge took adverse action against PEI. Alternatively, Lafarge asks us to affirm on
    the grounds that: (1) PEI admitted at a deposition that Lafarge did not retaliate
    against PEI; (2) PEI cannot show a causal relationship between PEI’s alleged
    protected opposition and any alleged adverse action; and (3) PEI has failed to present
    evidence showing Lafarge’s reasons for any adverse actions were pretextual. Lafarge
    - 21 -
    does not argue we should affirm based on MMM and Mr. Guerra’s third-party
    argument.9
    We reverse the grant of summary judgment to Lafarge on PEI’s § 1981
    retaliation claim because the district court erred in holding PEI could not show
    Lafarge had not taken adverse action against it.
    a. Legal principles on adverse action for retaliation claims
    To show an adverse action for a retaliation claim under § 1981, “a plaintiff must
    show that a reasonable employee would have found the challenged action materially
    adverse, which . . . means it well might have dissuaded a reasonable worker from making
    or supporting a charge of discrimination.” Burlington N. & Santa Fe Ry. Co. v. White,
    
    548 U.S. 53
    , 68 (2006) (quotations omitted) (Title VII retaliation); 
    Twigg, 659 F.3d at 998
    (providing “the principles set forth in Title VII retaliation cases apply with equal
    force” to § 1981 retaliation claims). The action must be materially adverse “to separate
    significant from trivial harms[,]” such as “petty slights, minor annoyances, and simple
    lack of good manners . . . .” 
    Id. b. Analysis
    PEI argues Lafarge was responsible for its termination in December 2011.10
    We must resolve whether there is a triable issue of fact that Lafarge is responsible for
    PEI’s termination.
    9
    For this reason, and because Lafarge did not present a third-party argument in
    its motion for summary judgment and the district court did not grant summary
    judgment as to Lafarge on that ground, we do not affirm as to Lafarge based on PEI’s
    forfeiture of its response to MMM and Mr. Guerra’s third-party argument.
    - 22 -
    The court erred in ruling there was no genuine issue of fact as to whether
    Lafarge played a role in terminating PEI.11 The letter asking PEI to vacate the
    project sent on December 12, 2011, identifies Mr. Guerra as a Lafarge employee and
    copies three Lafarge managers. App., Vol. V at 251. Lafarge points out that the
    letter was written on MMM letterhead and references MMM’s—rather than
    Lafarge’s—bonding requirement. But Mr. Guerra signed the letter as a Lafarge
    employee and copied it to Lafarge managers, which creates a genuine issue of fact as
    to whether Lafarge played a role in terminating PEI and thus took adverse action
    against it. The court erred in holding otherwise.12
    10
    In district court, PEI pointed to other alleged adverse actions, but the court
    ruled they did not qualify as adverse actions. PEI does not challenge these rulings, so
    we do not address them.
    11
    The court stated that PEI did not “specifically list[]” PEI’s termination by
    Lafarge in its response. That is incorrect, as PEI’s response argued Lafarge was
    responsible for its termination.
    12
    PEI also argues that Lafarge took adverse action against it in July 2011 by
    sending PEI a reprimand letter stating it would be terminated if PEI circumvented the
    proper dispute resolution process again and by requiring PEI to send letters of
    apology to Mr. Randall and Mr. Schmidt. The court ruled that the “letters of
    apology” did not qualify as adverse action, App., Vol. 2 at 124, but did not address
    whether Lafarge’s “letter of reprimand” qualified, despite PEI’s identifying the letter
    as evidence of retaliation in its opposition to summary judgment. It is not clear
    whether the court intended its ruling on the letters of apology to encompass the letter
    of reprimand, an issue that we leave for consideration on remand. See Burlington 
    N., 548 U.S. at 64
    (holding that adverse actions for retaliation claims are those that
    would “dissuad[e] a reasonable worker from making or supporting a charge of
    discrimination”); Couch v. Bd. of Trs. of Mem’l Hosp., 
    587 F.3d 1223
    , 1237 (10th
    Cir. 2009) (discussing how Burlington Northern broadened the scope of adverse
    actions for retaliation claims).
    - 23 -
    We therefore reverse because the court erred in holding PEI could not show
    Lafarge took adverse action against it to state a prima facie case of retaliation under
    § 1981.13
    III. CONCLUSION
    We affirm the grant of summary judgment on PEI’s § 1981 claim against MMM
    and Mr. Guerra because PEI forfeited its argument that its opposition to discrimination by
    opposing third-party conduct is “protected opposition” under § 1981. We reverse the
    grant of summary judgment on PEI’s § 1981 claim against Lafarge because PEI has
    shown a genuine issue of material fact as to whether Lafarge took adverse action against
    it.
    13
    We decline to reach any potential alternative grounds to affirm not ruled on
    by the district court. See Smith v. Rockett, 
    522 F.3d 1080
    , 1082 (10th Cir. 2008)
    (“Because the district court did not address any of the alternative grounds for
    dismissal asserted by Defendants, we decline to address those issues for the first time
    on appeal, leaving them for the district court to consider on remand.”); Greystone
    Const., Inc. v. Nat’l Fire & Marine Ins. Co., 
    661 F.3d 1272
    , 1290 (10th Cir. 2011), as
    amended on reh’g in part (Dec. 23, 2011) (declining to address an issue not ruled on
    below, noting “The better practice on issues raised below but not ruled on by the district
    court is to leave the matter to the district court in the first instance” (brackets omitted)).
    - 24 -