The US Electoral College certification comes six weeks after the result of the election was announced in favour of the Republican candidate.
The voting process by the Electors had been flooded with emails and phone calls urging them not to support the billionaire.
This is due to a last minute attempts to deny TRUMP of the White House following claims that his election was unduly influenced by Russian hackers.
In his reaction to the announcement; TRUMP promised to work hard to unite the country and be the president of all Americans.
