The GOP field for a shot at a Democrat-vacated seat includes an archetypal Deep Stater in former Rep. Mike Rogers, who chaired the House Intelligence Committee and scored Trump's endorsement in March despite having repeatedly bashed the former president. 

In his final House term, Amash left the GOP, first becoming an independent and then a "capital L" Libertarian, giving the party its first-ever member of Congress, and positioning himself for a potential 2020 presidential run as a Libertarian; after forming an exploratory committee, he ultimately opted not to run.  

In rotating back to the Republican Party after leaving it to carry the Libertarian banner, Amash is in some good company: After holding a House seat as a Republican, Ron Paul was the 1988 Libertarian presidential nominee, but returned to the GOP as a congressman and two-time Republican presidential candidate. 

Of course, for many Republicans, Amash committed a far bigger sin: voting to impeach Donald Trump in 2019 for abuse of power and obstruction of Congress. In a lengthy tweet thread at the time, Amash said Special Counselor Robert Mueller's report "identifies multiple examples of conduct satisfying all the elements of obstruction of justice, and undoubtedly any person who is not the president of the United States would be indicted based on such evidence."

Last August, however, Amash railed against the federal criminal indictment of Trump for alleged election interference, tweeting:

"I may not like Trump, but I love our Constitution, so I feel compelled to speak out. The latest indictment, which I encourage everyone to read, attempts to criminalize Trump's routine misstatements of fact and law in connection with the 2020 election. But this is precisely the sort of wrong that must be addressed politically under our Constitution, not criminally."