Answer
Former President Donald Trump formally endorsed Harriet Hageman, Liz Cheney's primary opponent, in the 2022 Wyoming Republican primary. Trump's endorsement was seen as a significant boost to Hageman's campaign, as he remains a popular figure among Republican voters. Cheney, a vocal critic of Trump and the 2020 election results, faced a tough challenge from Hageman, who aligned herself closely with Trump's policies and rhetoric.