After three days of counting, Joe Biden has become the 46th president of United States

Joe Biden will be the 46th President of the United States, according to race calls by news agency Associated Press as well as other major newscasters.

77-year-old Democratic nominee Joe Biden beat out Republican Donald Trump to become the US president in a hotly contested election.

According to the Associated Press, Biden has won the six electoral votes from Pennsylvania pushing his tally to the magic number of 270.

Joe Biden also carried Arizona, Wisconsin and Michigan on his path to the presidency, flipping states that President Donald Trump won in 2016.

Biden’s projected victory came after four days of nail-biting suspense over the outcome of Tuesday's election, with the counting of votes in a handful of battleground states ongoing thanks to a flood of mail-in ballots.

Reacting to his historic win, Joe Biden tweeted, "America, I’m honoured that you have chosen me to lead our great



country."

Acknowledging that he will soon be presiding over a deeply divided nation, Joe Biden wrote, "The work ahead of us will be hard, but I promise you this: I will be a President for all Americans — whether you voted for me or not. I will keep the faith that you have placed in me."

Throughout his campaign, Biden has been positioning himself to lead a nation gripped by the historic pandemic and a confluence of economic and social turmoil.

Donald Trump is the first incumbent president to lose reelection since Republican George HW Bush in 1992.

The Twitter-friendly president had no immediate reaction to the announcement, but as Biden's lead grew during vote counts since Tuesday's election, the Republican president lashed out with unsubstantiated claims of fraud and claimed, falsely, that he had won.

Earlier Saturday, as he headed to his golf course in Virginia, Donald Trump repeated this, tweeting: "I WON THIS ELECTION, BY A LOT!"