twitter #democracy #witnesses @voices4hillary Andrew Johnson Republicans Barrasso, John Trump, Donald J John Barrasso Trump-Ukraine Whistle-Blower Complaint and Impeachment Inquiry Biden, Joseph R Jr Romney, Mitt Johnson, Andrew Pelosi, Nancy United States Politics and Government Congress Alexander, Lamar Trump-Ukraine Whistle-blower Complaint and Impeachment Inquiry Joe Biden Impeachment McConnell, Mitch Republican Party John Bolton 2020 Election Collins, Susan M Lamar Alexander U.S. Nancy Pelosi Donald Trump Mitch McConnell Presidential Election of 2020 Susan Collins Mitt Romney US Politics Senate Democratic Party House of Representatives Democrats Bolton, John R nytimes.com