In my opinion, he has. Once in keeping with the intent of the constitution, (his attempt to hold Ukraine ransom for his political goals of getting them to investigate his opponent) and of course most of his actions, meetings, plans, rally speech in Washington, meant to overthrow the free election. And, to be sure, his actions regarding government documents that he kept, had underlings move, and lawyers deny existence in attempt to steal them for personal benefit, that have landed him under indictment.