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Decision Time USA, a Newsround special on 2012 election

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It's the longest, most expensive election on the planet and it'll decide the President of the USA for the next four years.

America is a really powerful nation - the decisions made by the US President, like whether to go to war, affect the whole world.

For months, current leader Barack Obama and his challenger Mitt Romney have travelled all over the US trying to get people to vote for them. It's neck and neck.

In this special Newsround, Ricky travels to the States to meet people from all walks of life to talk about the election, what they think about the candidates, and how they will vote...