MEMORANDUM **

Plaintiffs-Appellants (Plaintiffs) appeal from the district court’s order granting Defendants-Appellees’ (Defendants) motion for summary judgment. On appeal, Plaintiffs challenge the district court’s conclusions that they: (1) failed to state a cognizable equal protection claim; (2) failed to produce evidence demonstrating that Defendants engaged in First Amendment retaliation; and (3) failed to produce evidence demonstrating that Defendants intentionally interfered with Plaintiffs’ economic relations, in violation of Oregon law. Because the parties are familiar with the facts and procedural history of this case, we repeat only those facts necessary to resolve the issues raised on appeal. We affirm.

Plaintiffs argue that Defendants subjected them to disparate treatment as a “class-of-one,” in violation of the Equal Protection clause. Nonetheless, Plaintiffs’ allegedly disparate treatment was the result of discretionary decisionmaking, and the “class-of-one” theory is not cognizable with regard to discretionary actions. Towery v. Brewer, 672 F.3d 650, 660 (9th Cir. 2012) (citing Engquist v. Oregon Dep’t of Agr., 553 U.S. 591, 603, 128 S.Ct. 2146, 170 L.Ed.2d 975 (2008)).

With regard to Plaintiffs’ First Amendment claim, Plaintiffs failed to produce evidence showing that a desire to chill speech was the but-for cause of Defendants’ allegedly retaliatory conduct. Dietrich v. John Ascuaga’s Nugget, 548 F.3d 892, 900-01 (9th Cir. 2008). Absent such *765 causal evidence, Plaintiffs’ First Amendment claim fails.

Finally, Plaintiffs cannot demonstrate that Defendants intentionally interfered with Plaintiffs’ economic relations, because Plaintiffs failed to produce evidence that Defendants acted through improper means or with an improper motive. See Nw. Natural Gas Co. v. Chase Gardens, Inc., 328 Or. 487, 982 P.2d 1117, 1123-24 (1999).

For the foregoing reasons, the district court properly granted Defendants-Appel-lees’ motion for summary judgment.

AFFIRMED.