Virtually every congressional Republican who has dared to cross President Trump hasn't survived another election cycle. Now, it's Michigan Republican Justin Amash's turn to try to defy those odds. The libertarian-leaning Amash (MI-03) made headlines late last month when he became the first GOP House member to publicly call for impeachment proceedings to begin against Trump in the wake of the Mueller report. In a long, detailed Twitter thread, Amash wrote that "President Trump has engaged in impeachable conduct" and that "Attorney General Barr has deliberately misrepresented Mueller's report." Unsurprisingly, the president was eager to retort in typical fashion, tweeting that Amash was a "loser" and "total lightweight."

Here are my principal conclusions: 1. Attorney General Barr has deliberately misrepresented Mueller's report. 2. President Trump has engaged in impeachable conduct. 3. Partisanship has eroded our system of checks and balances. 4. Few members of Congress have read the report.

— Justin Amash (@justinamash) May 18, 2019

The dust-up prodded state Rep. Jim Lower, who was planning to kick off a primary challenge to Amash in July anyway, to move up

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