Republican Rep. Liz Cheney called on Americans to unite across party lines to keep Donald Trump from winning the White House again following her crushing defeat on Tuesday to a primary challenger backed by the former U.S. president.

Cheney, who has served three terms in Wyoming’s sole U.S. House seat, lost to conservative lawyer Harriet Hageman in Tuesday’s Republican primary primary, and made a point of conceding to her opponent — something she has long criticized Trump for never doing after the 2020 election.

Speaking to supporters on the grounds of a ranch not far from her own home as the sun set on the nearby Teton Mountain range, Cheney warned that the Jan. 6 U.S. Capitol insurrection and the refusal of Trump and other Republican leaders to tamp down the rage behind it put the nation at risk.