Newly elected Rep. Peter Meijer of Michigan, another impeachment backer, is getting challenged by Afghanistan war veteran Tom Norton, who has appeared on former Trump adviser Steve Bannon’s podcast to promote his candidacy. Gene Koprowski, a former official at the Heartland Institute think tank, is already running against Illinois Rep. Adam Kinzinger. In Ohio, former state Rep. Christina Hagan is not ruling out a primary bid against Republican Rep. Anthony Gonzalez.

“I have never seen a greater amount of backlash for any one single vote taken by any one single member of our Republican congressional delegation in Ohio,” said Hagan, who lost a primary to Gonzalez when the seat was open in 2018. “I have heard from Republicans in positions of power, within party leadership and all the way across the spectrum to faithful volunteers and business leaders throughout the region who are expressing serious frustration and distaste.”

Pro-Trump donors are joining the assault. Suzie Burke, a Seattle real estate executive who has contributed to Rep. Jaime Herrera Beutler (R-Wash.) in the years before the congresswoman’s impeachment vote, said she would “not be helping people who chose to rush to such placating the other side of the aisle.”