Mr Biden is leading by more than 19,500 votes, with 98% counted. If he takes the state, he will win the election. Earlier, Mr Biden edged ahead of his Republican rival in Georgia, another key battleground state, where a recount will now be held. Meanwhile, the Trump campaign said: “This election is not over.”
Trump campaign lawyer Matt Morgan claimed that ballots in Georgia were “improperly harvested”, without presenting evidence.
Latest updates: Election hinges on swing states
US election results in maps and charts
When will we know who has won?
In a statement later on Friday, Mr Trump said without providing evidence of any irregularity: “From the beginning we have said that all legal ballots must be counted and all illegal ballots should not be counted, yet we have met resistance to this basic principle by Democrats at every turn.
“We will pursue this process through every aspect of the law to guarantee that the American people have confidence in our government. I will never give up fighting for you and our nation.” Mr Biden is expected to address the nation from his campaign headquarters of Wilmington, Delaware, on Friday evening about his growing leads. His team is monitoring news networks to see whether they will declare him the winner.
What’s the current state of the race?
Mr Biden has 253 Electoral College votes, while Mr Trump has 214. To win the White House, a candidate needs 270. Some news organisations have a higher tally for Mr Biden, having projected a win for the Democrat in Arizona. But the BBC considers the state too early to call. Pennsylvania, where Mr Biden was born, has 20 Electoral College votes. If the Democrat wins it, he would secure the victory with 273 votes.
Election officials there said the count could take several days.
Pennsylvania voted Democratic in six consecutive White House races before it swung to Mr Trump in 2016. In Georgia, Mr Biden is currently leading with more than 4,000 votes, with 99% of the ballots counted. Georgia’s secretary of state said there would be a recount because the margin was so small.
Georgia (16 electoral votes) is a traditionally Republican state and has not been won by a Democrat in a presidential race since 1992.
Mr Biden leads by more than 22,000 votes in Nevada (six electoral votes) and by fewer than 40,000 in Arizona (11 electoral votes), while Mr Trump leads in North Carolina (15 electoral votes) by more than 76,000 ballots.
Mr Trump’s team says legal challenges and recounts in some states will favour them. Bob Bauer, a Biden campaign lawyer, says the lawsuits are legally “meritless”. But on Thursday, a judge in Pennsylvania ruled that Republican election observers should be granted close-up observation of the counting.
Who is ahead in the states still counting?
A win in just Pennsylvania, or two of the other four remaining states would be enough to confirm Mr Biden as president-elect. Mr Trump would need to win Pennsylvania and three of the remaining four states.
source : BBC