How superstorm Sandy has affected voters in New York
6 November 2012 Last updated at 20:03 GMT
It has been an unusual polling day in parts of New York and New Jersey, where special measures are in place to help voters affected by Superstorm Sandy.
Alternative polling stations have been set up in some areas - and people are being allowed to vote outside their usual districts.
The BBC's Matthew Price reports from Rockaways in New York.
For in depth coverage as the US goes to the polls: BBC US election special report