Lt. Rob Polans ret. wrote:
She had to be lying because POTUS can fire anybody for any or no reason. That Vindman (whichever it was) gave false testimony under oath is either a misdemeanor or felony so he was lucky to get off that lightly.
They all serve at the pleasure of the President. Like the line I hear the 'commissioner of NYC on 'Blue Bloods' say all the time.