Electoral College certifies Joe Biden as president-elect with 306 votes

President-elect Joe Biden speaks after the Electoral College formally elected him as president (Patrick Semansky/AP)

The Electoral College decisively confirmed Joe Biden as the next US president on Monday, ratifying his November victory in an authoritative state-by-state repudiation of President Donald Trump’s refusal to concede he had lost.

The presidential electors gave Mr Biden a solid majority of 306 electoral votes to Mr Trump’s 232, the same margin that Mr Trump bragged was a landslide when he won the White House four years ago.