Normally candidates don't do any campaigning on the day of voting, but this year things are different.
People are queuing to vote in the US
President Bush is going to address supporters in the state of Ohio, where Mr Kerry ended his final full day of campaigning the night before.
He will stop in the state of Wisconsin to try and convince a few more voters to choose him before returning to his home state of Massachusetts to vote.
High turn out predicted
Millions of US citizens have already cast their votes in states that allow early voting.
Some experts think the number of people turning out to vote could be the highest for 40 years.
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