The Democrats have extended their stunning majority as more Republican-held seats continue to flip in a resounding repudiation of President Donald Trump.

Four more House seats have gone to the Democrats, giving them 247 seats in the lower chamber — a gain of at least 33 seats — with 35 races yet to be called. CNN is projecting at least 250 House seats for the Democrats.

In the Senate, two races remain on a knife-edge — Alaska and Mississippi.

The Democrats so far have a Senate a majority of at least 54-44 but the tight races in Alaska and ​Mississippi leave open the possibility it could grow by another two seats to 56.

In Alaska, Democrat Mary Peltola is marginally ahead of Republican Dan Sullivan 48.2 per cent to 47.9 per cent.

This is the seat where allegations of a “spoiler” candidate also named Dan Sullivan was recruited to confuse Republican voters.

Trump on Friday (EST) demanded that the “fake” Dan Sullivan’s votes be given to the “real” candidate.

“The vote totals for the Fake Dan Sullivan, plus the other “slug” that the Dems put on the Ballot, should be immediately given to the REAL Dan Sullivan, and the Election is over — He easily wins. There is no other fair solution!,” he posted to Truth Social.

New York Democrats celebrate on election night. Photo: AAP

House Democratic Leader Hakeem Jeffries said the ‌incoming majority would be focused on affordability and accountability.

“We don’t work for Donald Trump,” Jeffries, a New York lawmaker who is on track to become the first Black speaker of the House, told reporters.

“We work for the American people. And the days of the House of Representatives functioning like a wholly owned subsidiary of the Trump administration are over.”

Meanwhile, Trump called in reporters on the morning after his party’s sweeping ‌midterm defeat to show off the huge ballroom ‌he is building at the White House.

“When I ⁠get criticised, like, ‘Why are you working on the White House?’ I’m doing it because the White House is the ultimate symbol of America and it’s got to be pristine, it’s got to be ​perfect,” Trump said.

He turned only briefly to the elections during his near hour-long appearance, telling reporters: “I’ll get along probably with the Democrats, unless they want to be destructive, but I have the power of the veto.”

Trump had cast the midterm elections as a referendum on the first half of his second four-year stint in the White House, repeatedly urging his Republican base to “pretend I’m on the ballot”, a message Democratic Party leaders were happy to amplify.

The result: voters in conservative strongholds who had propelled the president to his second term in office just two years ago swung dramatically toward Democrats, fuelled by deep frustration over the unpopular war with Iran, anxiety over the high cost of living and anger at Trump’s stewardship of the country.

In Texas, the biggest Republican-led state before Tuesday, Democrats ended a decades-long losing streak in seismic fashion, winning their first Senate seat there since 1988 and ousting three-term Governor Greg Abbott.

Kansas elected its first Democratic senator since ⁠the Great Depression nearly a century ago, and in South Carolina, a state that Trump carried by nearly 18 points in 2024, Democrats turned aside his hand-picked Senate candidate.

The loss also upended Republicans’ House leadership, with House Speaker Mike Johnson saying he would not continue to lead his caucus in 2027.

Trump, who is barred by the US Constitution from seeking a third term, acknowledged the war with Iran had played a role in his party’s losses but stood by his decision.

Vice President JD Vance, who may run as a Trump successor in the 2028 election, piled blame on his boss’s ​decision to ​attack Iran in February.

“The reason we lost is the war,” Vance wrote in a long social media post.

“The president himself said so ​last night. If you’d like to argue it was worth it, that losing the Senate for the next six years was worth it, then ‌do so. Argue it was a worthwhile cost to pay.”

According to tallies compiled by Reuters and USA Today, Republicans lost ground in 99 per cent of the roughly 2100 counties where most votes had been counted as of Wednesday morning.

Abdul El-Sayed, a Democrat from the party’s rising left wing, won Michigan’s ​open Senate seat, becoming the first Muslim elected to the chamber and defeating Mike Rogers, who entered the race with Trump’s backing.

-with AAP