Arguing that the results of the presidential election are defective, Donald Trump’s campaign has asked a judge in Pennsylvania to declare him the winner in the state and allow the Republican-led state legislature to decide which way it will allocate its 20 electoral college votes.

Joe Biden is projected to have won Pennsylvania by more than 82,000 votes, in a result which swung the overall election in the Democrat’s favour. Overturning the result there is crucial to the president’s efforts to claim victory and a second term in the White House.