Donald Trump: How to remove a US President from office

Donald Trump has already tangled with more than half the Republicans on a Senate committee that would play a key role if he were impeached.In series of tweets, Mr Trump called Senator Lindsey Graham "publicity seeking" and said he "just can't forget his election trouncing" in the 2016 presidential race.Both men are members of the Senate Judiciary Committee, which would be central to any proceeding to remove Mr Trump from office.