> If he lied about doing this, he was an idiot.
I think he lied about it, knowing full well that he had been recorded to help Trump gain additional info on who was unmasking US citizens (by managing to get his own phone call unmasked). I think it provided the ammo to fire Sally Yates, who was important to get out of the way early in establishing law and order. Said another way, Flynn took a bullet for the President.
Trump should unmask he that isn’t a citizen.