Biden – who will be 78 on inauguration day, January 20 – will become the oldest sitting president in US history.
He previously ran for president in 1988 and 2008, but dropped out early after performing poorly in the Democratic primaries.
Biden’s victory in Pennsylvania took him to 284 Electoral College votes in the Associated Press’s count, pushing him over the 270 votes required to claim the presidency.
Trump, who has claimed the election was marred by widespread fraud, was at his golf course in Virginia when the race was called for Biden. Earlier in the day he had tweeted simply: “I WON…
