Americans cast their votes in Charlottesville, Virginia early on Tuesday morning in an election that follows one of the most turbulent half-years in modern American politics.
Democrat Kamala Harris, 60, the first female vice president, could become the first woman, Black woman and South Asian American to win the presidency.
Republican Donald Trump, 78, the only president to be impeached twice and the first former president to be criminally convicted, could also become the first president to win non-consecutive terms in more than a century.
The winner may not be known for days if the margins in key states are as slim as expected.
More than 80 million Americans had already voted before Tuesday, either via mail or in person, according to the University of Florida Election Lab.
