The Lincoln Project, a group of Trump-hating Republicans, has released another ad highlighting Lt. Col. Alexander Vindman’s service to his country. Vindman listened to the call between Donald Trump and Ukrainian President Zelensky and was a star witness during the impeachment proceedings. He was fired from the National Security Council after the President was acquitted. Trump has said recently he believes the military should investigate Vindman. The Army Secretary said there is no investigation. Watch the ad above.