Joseph Robinette Biden Jr. has defeated Donald Trump to become the 46th U.S. president, unseating the incumbent with a pledge to unify and mend a nation reeling from a worsening pandemic, faltering economy and deep political divisions. Biden's victory came after the Associated Press, CNN and NBC showed him winning Pennsylvania and gaining more than the 270 Electoral College votes needed to secure the presidency. Trump sought to undermine the outcome, baselessly accusing Democrats of trying to steal the election and claiming victory before the race was called.