Well, if he knocked the president unconscious, then he's called a "criminal".
The Vice President
The President & Vice-President are elected by the ballots cast by citizens called electors.
The current Vice-President is called Joe Biden.
It is called the vice president!
If the vice-president had to assume the office, he would be sworn in as President of the United States and would be called "Mr. President" from that time on.
vice president, Joe Brown
The current Vice-President is called Joe Biden.
The power that is vested in the President and the Vice President is called executive power. This power is expected to be exercised according to the constitution.
They are called running mates when they are running for election.
The person that is known is the vice president.
The vice president serves as president of the senate. There are 100 Senators, and if there is ever a tie in the senate, the vice president gets to cast the winning vote. If the vice president is not available, somebody else will serve, he is called the president pro tempore.
Impeachment