Updated at 12:25 p.m. ET

As coronavirus cases surge around the country, President-elect Joe Biden says voters have given him a mandate to take action.

"Daily cases are skyrocketing," Biden said in remarks Friday evening in Wilmington, Del., as the nation waited for the election to be called. "I want everyone — everyone — to know on Day 1, we're going to put our plan to control this virus into action."

Biden echoed that commitment in his acceptance speech Saturday night.

Updated at 9:45 p.m. ET

California Sen. Kamala Harris will become the next vice president of the United States, shattering another racial and gender barrier in American politics, at the end of a bruising presidential race that further exposed a bitterly divided electorate.

Updated at 1:54 p.m. ET

Former Vice President Joe Biden has been elected the 46th president of the United States, narrowly emerging victorious from a contentious White House campaign that stretched days past election night, as vote tallies in several swing states were slowed by an unprecedented surge in mail-in ballots.

With President Trump railing about "fraud" and pointing to the Supreme Court — with three of his appointees — as the final arbiter, the question many are asking is this: What are the chances that the high court will actually get involved? In short, will 2020 be a replay of Bush v. Gore?

Updated 9:15 a.m. ET

Mark Meadows, the chief of staff to President Trump, has tested positive for the coronavirus. He is the latest person in the president's inner circle to catch the virus, which is surging across the country.

Meadows was last seen by reporters on election night, when Trump gave a defiant speech to supporters packed into the East Room of the White House. Meadows walked into the room ahead of Trump's adult children just ahead of his remarks.

Aides to President Trump have been counseling him this week that his legal options to try to contest the election are limited, but Trump wants to fight it out, a former campaign adviser who remains in touch with key players told NPR.

"It's dawning on him," the former adviser said, speaking on condition of anonymity to comment on private conversations. "He never thought he could lose ... and those of us who are in Trump World, we actually never believed he could lose."

Updated at 11:19 p.m. ET

Democratic presidential nominee Joe Biden spoke on Friday evening to reaffirm his belief that he would eventually emerge victorious against President Trump, urging calm and patience as his lead against the Republican incumbent has widened in key swing states that are still counting votes.

"We're going to win this race with a clear majority," Biden said, speaking alongside his running mate, Kamala Harris, in his home state of Delaware.