FLORIDA: Donald Trump was elected president, capping a remarkable comeback four years after he was voted out of the White House and ushering in a new American leadership likely to test democratic institutions at home and relations abroad.

Trump, 78, recaptured the White House on Wednesday by securing more than the 270 Electoral College votes needed to win the presidency, Edison Research projected, following a campaign of dark rhetoric that deepened the polarization in the country.

The former president's victory in the swing state of Wisconsin pushed him over the threshold.

As of 5.45 am ET (1045 GMT), Trump had won 279 electoral votes to Harris' 223 with several states yet to be counted.

Trump's political career appeared to be over after his false claims of election fraud led a mob of supporters to storm the US Capitol on Jan. 6, 2021, in a failed bid to overturn his 2020 defeat.

But he swept away challengers inside his Republican Party and then beat Democratic candidate Kamala Harris by capitalizing on voter concerns about high prices and what Trump claimed, without evidence, was a rise in crime due to illegal immigration.

Harris did not speak to supporters who had gathered at her alma mater Howard University.

Her campaign co-chair, Cedric Richmond, briefly addressed the crowd after midnight, saying Harris would speak publicly later on Wednesday.

"We still have votes to count," he said.

Republicans won a US Senate majority, but neither party appeared to have an edge in the fight for control of the House of Representatives where Republicans currently hold a narrow majority.