President-elect Joe Biden not only won the 2020 presidential election but when all the votes are tallied, he may have won by a convincing margin.

Biden on Saturday surpassed the required 270 electoral votes with a win in Pennsylvania. As of 3:30 p.m. ET on Sunday, he has 279 electoral votes with 45 electoral votes remaining. President Donald Trump, meanwhile, has remained at 214 votes, though he is expected to win Alaska's three electoral votes.

Arizona, Georgia and North Carolina are still counting votes. Trump has a narrow lead in North Carolina, but Biden leads by a slim margin in Arizona and Georgia. The Associated Press and Fox News both called Arizona for Biden hours after polls closed in the state but other outlets have left it "too close to call."

Should Biden carry Arizona and Georgia, he will have 306 electoral votes. Should Trump carry North Carolina, and maintain his big lead in Alaska, he will finish with 232 electoral votes, which means he will have lost the election by 74 electoral votes. 

Biden also has a big lead in the popular vote. The Democrat has 75,350,308 total votes, or 50.5%. Trump has 71,085,772 votes, or 47.7%. Biden's lead is 4,265,078.

The 2020 election has had the highest voter turnout in U.S. history.

California was a boon for Biden, who received almost 9.2 million votes, while Trump received around 4.7 million. Had Trump won California, the 55 electoral votes would have carried him to victory.

In the 2016 presidential election, Democrat Hillary Clinton won the popular vote by about 2.8 million votes, but Trump won the electoral vote count, 304-227.

Trump has been very open and vocal about his disapproval of the 2020 election results, saying it has been stolen by the Democrats. He has pledged to fight the election's results in the courts.

US President-elect Joe Biden pumps his first after delivering his victory speech in Wilmington, Delaware US President-elect Joe Biden pumps his first after delivering his victory speech in Wilmington, Delaware Photo: AFP / Jim WATSON