Vice President Kamala Harris canceled a planned speech at an election night party.
Still, he had not yet conceded defeat early Wednesday after former President Donald Trump was elected to another term.
Trump defeated Harris by capturing at least 270 of the electoral votes needed to win the presidency. His tally could increase as more votes are counted.
On Tuesday night, Harris was expected to address her election night party at Howard University in Washington, D.C., a historically Black college where she was an undergraduate.
"We still have votes to count. We still have states that have not been called yet. We will continue, overnight, to fight to make sure that every vote is counted, that every voice has spoken,"
Harris' campaign co-chair Cedric Richmond said Tuesday night. "So you won't hear from the vice president tonight, but you will hear from her tomorrow."