Rep. Justin Amash (R-MI) finally broke with other Republicans Omertà code of silence on Trump's, and now Barr's, apparent lawless behavior. Amash also went further than some Democrats, in calling for Trump's impeachment. Source: CNN Michigan GOP Rep. Justin Amash said Saturday he had concluded President Donald Trump committed "impeachable conduct" and accused Attorney General William Barr of intentionally misleading the public. Amash's comments recommending Congress pursue obstruction of justice charges against Trump were the first instance of a sitting Republican in Congress calling for Trump's impeachment. Amash is a rare GOP critic of Trump and previously said Trump's conduct in pressuring then-FBI Director James Comey could merit impeachment.