Actor Kevin Costner on Monday defended Liz Cheney, saying the former Republican congresswoman from Wyoming should be applauded for her public service. 

 "I expect people in government to do the right thing. Public service is about public service. It’s not about your career. It’s not about your ego. Your four years is your four years," the former "Yellowstone" star said during a live, town-hall edition of "The Michael Smerconish Program" on SiriusXM.

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KEVIN cOSTNERand Liz Cheney

Kevin Costner defended former GOP Congresswoman Liz Cheney on a podcast.  (Getty Images)

Cheney came under fire from President-elect Trump in the days before his Election Day victory. She denounced his remarks in which he called her a "war hawk" from the comfort of Washington, D.C. 

"Let’s put her with a rifle standing there with nine barrels shooting at her, OK," Trump said. "Let’s see how she feels about it. You know, when the guns are trained on her face."

Cheney has been one of Trump's biggest critics and campaigned for Vice President Kamala Harris. She criticized Trump after many of his supporters stormed the U.S. Capitol on Jan. 6, 2021.

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Trump Liz Cheney

President-elect Trump and former Rep. Liz Cheney (Getty Images)

Costner endorsed Cheney ahead of the 2022 midterm elections. That year, Cheney shared a photo of the actor wearing a T-shirt saying, "I’m for Liz Cheney."

"I’m very proud of Liz Cheney," Costner said. "I found a person completely at odds with one side willing to stand up. We should applaud her. We should protect her."

A photo of Kevin Costner

Kevin Costner poses for a portrait at the 27th SCAD Savannah Film Festival on November 01, 2024 in Savannah, Georgia.  (Emma McIntyre/Getty Images for SCAD)

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"This woman should never be threatened," he added. 

Cheney lost her re-election bid to Rep. Harriett Hageman, who was backed by Trump, in the GOP primary.