Feud Between Trump Advisers Underscores a White House Torn by Rivalries. Bolton, John R, Trump, Donald J, Impeachment, Trump-Ukraine Whistle-blower Complaint and Impeachment Inquiry, Mulvaney, Mick, Ukraine, Haley, Nikki R, Cipollone, Pat A, Kupperman, Charles M, Leon, Richard J, Tillerson, Rex W, Kelly, John F (1950- ), United States Politics and Government