Pro-Trump GOP state rep announces Amash primary challenge in Michigan

A Michigan state lawmaker on Monday announced he will mount a primary challenge to Rep. Justin AmashJustin AmashSanders co-chair: Greenwald charges could cause 'chilling effect on journalism across the world' Trump rails against impeachment in speech to Texas farmers Overnight Defense: Foreign policy takes center stage at Democratic debate | House delivers impeachment articles to Senate | Dems vow to force new vote on Trump's border wall MORE (R-Mich.) after the congressman tweeted that he believed President TrumpDonald John TrumpMnuchin knocks Greta Thunberg's activism: Study economics and then 'come back' to us The Hill's Morning Report - House prosecutes Trump as 'lawless,' 'corrupt' What to watch for on Day 3 of Senate impeachment trial MORE had committed impeachable offenses, according to the Detroit Free Press.

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State Rep. Jim Lower (R) said he would challenge Amash in the Republican primary for his western Michigan seat rather than seek a third term in the state legislature.

Lower said he had been planning to run before Amash’s remarks but fast-tracked his announcement after the tweets this weekend despite originally planning to make it closer to July 4.

Amash drew fire from Trump on Sunday for tweeting that special counsel Robert MuellerRobert (Bob) Swan MuellerSchiff: Trump acquittal in Senate trial would not signal a 'failure' Jeffries blasts Trump for attack on Thunberg at impeachment hearing Live coverage: House Judiciary to vote on impeachment after surprise delay MORE’s report detailed “impeachable conduct” and that Attorney General William BarrWilliam Pelham BarrLawmaker wants Chinese news outlet to register as foreign agent The Hill's Morning Report - Trump trial begins with clashes, concessions Barr wrote 2018 memo contradicting Trump's claim that abuse of power is not impeachable MORE had misrepresented Mueller's findings.

“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,” Amash said.

Trump fired back, calling Amash a “total lightweight” and accusing him of making the comments “for the sake of getting his name out there through controversy.”

Lower has seized on the back and forth.

"Congressman Justin Amash’s tweets yesterday calling for President Trump’s impeachment show how out of touch he is with the truth and how out of touch he is with people he represents," Lower said, according to the newspaper. "He must be replaced and I am going to do it."

Amash previously faced a primary challenge in 2014, topping businessman Brian Ellis by 14 points. Amash's office did not immediately respond to a request for comment.

Updated at 9:03 a.m.