The Republican has achieved one of the most unlikely presidential victories in US history and thus shattered the expectations of polls, the media and even some of his own Republican party.
Despite the fact the billionaire property magnate has become known for his inflammatory tweets throughout the 2016 presidential campaign, Mr Trump's victory tweet was calm and composed. He tweeted that he would unite America and no "forgotten" man or women would ever be "forgotten again".
He also changed his Twitter bio to: "President-elect of the United States".
In spite of a series of controversies and allegations which would have been likely to wreck other presidential candidates, Mr Trump has been victorious. On top of this, the Republican party has also won the House of Representatives and a great deal of the Senate.
Mr Trump promised to unite America in his victory speech, calling for unity and praising his Democrat rival Hillary Clinton for a hard-fought campaign. "Now it is time for America to heal the wounds of division," he said.
The leader of France’s far-right National Front leader Marine Le Pen and Nigel Farage congratulated Mr Trump on winning The White House.
The White House said Barack Obama has called Mr Trump to congratulate him and invited him to the White House on Thursday. The President also rang Ms Clinton to commend her on the strong campaign she led.
Ms Clinton has yet to tweet or give a speech since she called him to concede the election.
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