Harris and Trump spoke by phone on Wednesday, and discussed “the importance of a peaceful transfer of power and being a president for all Americans”, a Harris aide told journalists.
A spokesman for Trump said that on the call, the president-elect “acknowledged Vice-President Harris on her strength, professionalism, and tenacity throughout the campaign, and both leaders agreed on the importance of unifying the country”.
In a separate call with Biden, the president “congratulated the Vice-President on her historic campaign”, according to a White House readout of the call.
Biden watched Harris’s speech live at the White House, one of his aides said.
One Harris supporter, Charles Collins, flew in from San Francisco to be at Howard University on Wednesday.
“I’m moving through the process of grief,” he told the BBC. “But Kamala asked us to heal, so we can get to work.”