It's the last day of voting in the U.S. election, and if you want to know the states the campaigns think will be decisive, just take a look at where the candidates have been in the final few days of the race.

With over 94 million votes cast before election day – more than two-thirds of the total turnout in 2016 – Joe Biden and Donald Trump have focused their attention on Pennsylvania, where the 20 electoral votes up for grabs could tip the election.