Last year, Cheney, the daughter of former Vice President Dick Cheney, told the host, “I will do everything I can to make sure Trump’s not the nominee and, you know, everything necessary to make sure he never gets anywhere near the Oval Office again.”

Her new comments underscore how Cheney is not backing down from her break with much of the GOP as she faces a tough primary challenge by Harriet Hageman, who is endorsed by Trump, in August.

“I don’t think the party would survive that,” Cheney added in the interview that aired Sunday. “I believe in the party, and I believe in what the party can be and what the party can stand for. And I’m not ready to give that up. … Those of us who believe in Republican principles and ideals have a responsibility to try to lead the party back to what it can be, and to reject, and to reject so much of the toxin and the vitriol.”