In May 2019, Amash said that Trump "has engaged in impeachable conduct" based on the obstruction of justice findings of the Mueller Report, which, Amash said, "few members of Congress have read".  Amash also said that Attorney General William Barr "deliberately misrepresented" the report's findings and that partisanship was making it hard to maintain checks and balances in the American political system.  Amash was the first Republican member of Congress to call for Trump's impeachment.  In response, Trump called Amash a "loser", accused him of "getting his name out there through controversy", and falsely stated that the Mueller report had concluded that there was no obstruction of justice.  Ronna McDaniel, chairwoman of the Republican National Committee, accused Amash of "parroting the Democrats' talking points on Russia. " She did not explicitly express support for a primary challenge against Amash, but tweeted, "voters in Amash’s district strongly support this president. " House Minority Leader Kevin McCarthy, a Republican, claimed that Amash "votes more with Nancy Pelosi than he ever does with me"; PolitiFact evaluated this as false.  Republican Senator Mitt Romney described Amash's statement as "courageous", though he disagreed with Amash's conclusions. The New York Times reported that while many Republicans supported Trump in public, they criticized his actions in private.