Biden overtakes Trump in Pennsylvania

The outcome remains on a knife edge. The official electoral college votes have not shifted since last night – Joe Biden is still on 253 and Donald Trump on 213 votes. No candidate has yet reached 270 votes.

It all comes down to four key states, where the margins are razor thin: Nevada, Arizona, Georgia and Pennsylvania. Joe Biden is ahead in all four, but only just.

In Georgia, state election officials have confirmed there will be a recount as the margin is so tight.