Voters in the US go to the polls on 8 November to decide who will replace President Barack Obama.
The US uses the electoral college system to elect its president, in which each state is given a number of votes based on its population. A total of 538 are up for grabs.
Most states nearly always vote the same way, leaving a handful of battleground states where the election will be won and lost. Play the game to find out more about these key states and see who you think will win the election.