In the 2016 election, Hillary Clinton received nearly three million more votes than Donald Trump, but Trump won by far the most electoral votes and became the 45th president of the United States.
In this year's election, Democrat Joe Biden leads the polls, but the battle for electoral votes is smoother - with the states of Florida, Wisconsin and North Carolina able to decide the election.
- Florida is a state that both candidates can win, Wisconsin has long been a democratic stronghold but there Trump won last. North Carolina is a southern state and they have traditionally been Republican. North Carolina is a southern state where there is an opportunity for the Democrats to win, says Dag Blanck, professor of North American Studies Uppsala University in SVT's Morning Studio.