As a reminder, Alexander Vindman worked in the White House, in the National Security Council as the Director of European Affairs. He was an Army Lt. Colonel. He was the one who snitched out Trump for trying to hold money up to Ukraine unless they investigated Biden which led to the 1st Impeachment. After the Impeachment was over, Trump retailiated. They reassigned him to another job and held up his promotion. Alexander retired due to the harrassment from Trump and his allies. Trump fired his twin brother, who was a military person in the White House on the National Security Council (not a political appointee) out of spite because he was in on it.