US Presidential Inauguration Day: Donald Trump is set to take the oath of office as the 47th President of the United States on Monday, January 20, alongside Vice President-elect JD Vance. The Republican leader will formally return to the White House for the second time after winning the 2024 presidential race against outgoing Vice President Kamala Harris. He will take over from the incumbent President Joe Biden and will be administered the oath of office by US Chief Justice John Roberts.