Joe Biden has promised to be a “President for All Americans” after surpassing the 270 electoral college votes required to beat Donald Trump in the US presidential race.
The former vice president was named Pennsylvania winner on Saturday, meaning he has an insurmountable lead in the race for the White House.
Mr Biden said he was “honored” that America “chose me to lead our great country,” adding that it was time for the US to “unite” and “heal”.
The election victory in Wisconsin, Michigan and Arizona – three states that voted for Mr Trump in 2016 – opened up several avenues for the Democratic candidate to the presidency.
It was victory in Pennsylvania, about four days after the polls were completed, that got him over the line.
A little earlier, Mr. Trump, who has not yet admitted, left the White House to play golf.
Mr Biden said on Twitter: “America, I am honored that you have chosen me to lead our great country.
“The work ahead of us will be tough, but I promise you this: I will be president for all Americans – whether you voted for me or not.
“I will keep the faith you have put in me.”
In a statement, Mr. Biden said: “I am honored and humbled by the trust the American people have shown in me and in Vice President-elect Harris.
“In the face of unprecedented obstacles, a record number of Americans voted. To prove once more that democracy beats deep in the heart of America.
“Now that the campaign is over, it is time to leave the anger and harsh rhetoric behind and come together as a nation.
“It is time for America to unite. And to heal.
“We are the United States of America. And there’s nothing we can’t do when we do it together. “
Mr Trump made a number of unfounded allegations that he was being defrauded for re-election, while Mr Biden asked for calm as votes in key battlefield states were counted well after November 3rd.
On Saturday morning, a senior election official dismissed Mr Trump’s new allegations of election fraud.
Mr Trump posted a series of tweets on Saturday claiming that “bad things” had happened. He was referring to “illegally obtained” votes and insisted that he had won “a lot”.
However, the commissioner of the Bundestag Election Commission, Ellen Weintraub, said there was no evidence of election fraud.
Following the series of tweets from Mr Trump, flagged by Twitter as information about the election that may be “misleading,” Democrat Weintraub said, “State and local officials and election workers across the country have really picked up.
“And there have been very few complaints about how this election went.
“Very few well-founded complaints, let me put it this way. There is no evidence of electoral fraud.
“There is no evidence that illegal votes were cast.
“Indeed, and you don’t have to take my word for it, because people across the country, impartial polls, came out and welcomed this election and its implementation.
“If you want to take a look at the state of Pennsylvania, which the president seems to be focusing on, Senator (Pat) Toomey came out and said he saw no evidence of fraud there.
“The Republican Senate leader there also said he saw no evidence of fraud.”
She added, “There was really no evidence of fraud. None of the complaints included evidence of fraud.
“Really, we should be very proud of ourselves.”
Their comments came after Mr Trump posted on Twitter that tens of thousands of votes were “illegally obtained” after 8pm on Tuesday, “completely and slightly changing the results in Pennsylvania and certain other paper-thin states.”
Mr Trump said there would be a “big press conference” in Philadelphia on Saturday afternoon in the UK, adding on Twitter: “I have won this election many times over!”
Twitter flagged this tweet, saying that official sources may not have called the race when it was tweeted.