Key Impeachment Witness Escorted Out Of The White House

The transcript discusses Trump's departure from the White House and the subsequent escorting of Lieutenant Colonel Alexander Vinman. Vinman's attorney claims he was asked to leave for telling the truth. Trump expressed dissatisfaction with Vinman, and media outlets reported on Trump's criticism of Vinman's role in the impeachment inquiry. Vinman testified about a call between Trump and Ukraine's president, raising concerns about Trump's request to investigate an American citizen. Vinman was scheduled to finish his National Security Council rotation and will be reassigned to the Department of Defense.

What actions did the Trump administration reportedly consider regarding other officials?

What was Vinman's role at the National Security Council before his reassignment?