Despite having only been elected in the early hours of this morning, the Republican candidate is already facing his first major decision over calls for Mr Assange to be cleared over sex assault allegations.
WikiLeaks has long sought to expand privacy rights and has strongly opposed secret wiretaps, drone strikes, and the Guantánamo Bay prison facility.
Mr Trump, on the other hand, has suggested “closing up the internet” and had often wondered aloud whether the US should consider using nuclear weapons more often.
However despite their differences, the two men have been brought together by the race for the White House.
Thousands of private e-mails from Hillary Clinton’s campaign chair John Podesta were leaked last month, soon after the leak of a video of Mr Trump making vulgar comments about women in 2005.