Brother of Impeachment Witness Says His Firing Was a Whistle-Blower Reprisal. Vindman, Yevgeny, United States Politics and Government, Trump-Ukraine Whistle-blower Complaint and Impeachment Inquiry, National Security Council, O'Brien, Robert C (1952- ), Trump, Donald J, Vindman, Alexander S, Ethics and Official Misconduct, Whistle-Blowers