Democratic presidential candidate and former Vice President Joe Biden joined by Democratic vice presidential candidate Sen. Kamala Harris, D-Calif., speaks at the The Queen theater Thursday, Nov. 5, 2020, in Wilmington, Del. [Photo: AP Photo/Carolyn Kaster]

WASHINGTON, United States – Democrat Joe Biden became the 46th president of the United States on Saturday, defeating Donald Trump following a ballot controversy that lead to legal actions.

His victory came days after Trump campaign challenged vote counts in the key states of Wisconsin, Georgia, Pennsylvania and Michigan, claiming to be ahead in the US presidential election. But Biden crossed the winning threshold of 270 Electoral College votes with a win in Pennsylvania.

Biden, 77, staked his candidacy less on any distinctive political ideology than on galvanizing a broad coalition of voters around the notion that Trump posed an existential threat to American democracy, as local media reported.

Biden, in a statement, declared it was time for the battered nation “to unite and to heal.”

“With the campaign over, it’s time to put the anger and the harsh rhetoric behind us and come together as a nation,” he said. “There’s nothing we can’t do if we do it together.”

Meanwhile, Democrat Kamala Harris made history as the first Black woman to become vice president, an achievement that comes as the U.S. faces a reckoning on racial justice.

Biden’s victory made Trump the first one-term president since Republican George H.W. Bush in 1992.