America goes to the polls
America goes to the polls today in what has become the most expensive and extensively covered election in United States history.
The BBC's many reporters, correspondents and editors have departed to various parts of the United States to cover an event that has repercussions for the world - and which will dominate the headlines today.
Ariel has been following what the BBC's army of reporters in the US are saying about the election on Twitter.
Los Angeles correspondent Alastair Leithead arrives in Las Vegas and will be in a bar, apparently getting the views of drinkers: 'We'll be live from a bar on the strip. Election results, fire & neon.'Running out of words
Washington correpondent Jonny Dymond worries that he's run out of different ways of saying the same thing about Obama's and Romney's bitter battles: 'I may be running out of war similes. And then how will I write about election 2012.'
Mark Mardell was in Wisconsin yesterday and saw Bruce Springsteen play for Obama supporters: 'At Wisconsin rally Springsteen almost makes a better case for Obama, than Obama, after he plays Promised Land.'
Paul Adams, also a Washington correspondent, says: 'Going live in Madison on the last day Barack Obama will ever campaign for president.'
Katty Kay, presenter for BBC World News, is travelling on election day: 'Heading to NYC to greet election day with Morning Joe [television programme] then back to DC to join David Dimbleby on the BBC's election special.'
BBC News features writer Daniel Nasaw, based in Washington, is worried about sleep: 'Happy election day tweeps! It's upon us at last. I'm crashing now cause I may be up late tomorrow night covering the results for BBC News US.'
Adam Blenford, BBC News website editor in Washington, says thanks 'to the very few people left in my twitter feed who are tweeting about non-election issues, a heartfelt thank you.'Dimbleby special
The result of the election is expected in the early hours of Wednesday morning.
You can follow the BBC's election via Twitter @BBCNewsUS, while BBC News Online will have live updates throughout the night and through tomorrow.
David Dimbleby and Katty Kay will front BBC One's special election night programme from 11.35pm. It will also be broadcast on BBC World News and the News Channel.
Bridget Kendall and James Naughtie will do the honours on Radio 4 and World Service with America Decides from midnight, while Richard Bacon will be in Tampa, Florida for 5 live's coverage starting at 10.30pm.