Presumptive President-elect Joseph R. Biden is the winner in Georgia, two networks projected Friday, while President Trump was declared the winner in North Carolina.
All states now have been called, although the Trump campaign is contesting the results in several states where the margins were close.
ABC News and NBC News declared the Democrat flipped Georgia and its 16 electoral votes. The decision came 10 days after Election Day, with a statewide hand recount looming.
The call gives Mr. Biden a total of 306 electoral votes, the same amount that Mr. Trump won in 2016. A candidate needs 270 to win the presidency.
The president now has 232 electoral votes.
Mr. Trump had been expected to win North Carolina, where mail-in ballots were allowed to be received through this week. The latest totals have the president leading there by a margin of 50 percent to 48.6 percent.
Mr. Biden has received 77.9 million votes nationwide, to Mr. Trump’s 72.6 million, according to the latest totals on Friday.
The president said on Twitter Friday that the election was “rigged, from Dominion all the way up & down!”
Dominion Voting Systems is a software company used in 28 states. Trump allies have claimed without proof that the voting machines deleted and switched votes intended for Mr. Trump.
The administration’s Department of Homeland Security said Thursday that there is “no evidence that any voting system deleted or lost votes, changed votes, or was in any way compromised.”
Dominion said that it “categorically denies any claims about any vote switching or alleged software issues with our voting systems.”
Republican officials raised alarms when a Dominion ballot-scanning machine in the GOP stronghold of Antrim County, Michigan, reported unofficial results showing Mr. Biden beat Mr. Trump by about 3,000 votes.
Election officials then discovered the ballot scanner and reporting software had been misconfigured and gave about 5,000 Trump votes to Mr. Biden.
Mr. Trump won the county by roughly 2,500 votes.
Michigan officials blamed the mix-up on human error.
The incident sparked concerns that other Dominion scanners and software could be skewing results. So far, no evidence has been uncovered of widespread miscounts involving the company’s systems.
Mr. Biden won Michigan by about 148,000 votes.