Candidates criss-cross battleground states in final hours of campaign
Clinton promises an "inclusive" America - Trump vows to purge "corrupt" system
BBC poll of polls puts Democratic candidate ahead by four points
More than 45 million early voters have already cast their ballots
Image source, AFP"Now it's up to the American people to deliver the justice that we deserve at the ballot box tomorrow," he says during his second campaign stop on Monday.
"My contract with the American voter begins with a plan to end corruption and to take our country back from the special interests," he continued.
Shamans in Lima, Peru, have performed a ritual to predict the results of the US election a day before Americans head to the voting booth.
Image source, Getty Images
Image source, Getty Images
Image source, Getty Images
Image source, ReutersRichard Nixon has some advice from beyond the grave for Donald Trump, writes Paul Wood. At least he does if the latest polls are right and Trump loses tomorrow. "Great men have become mediocre because of inability to accept a defeat," Nixon wrote in his book In the Arena. "Many men have become great because they were able to rise above defeat."
Nixon was talking about his decision not to contest the 1960 election, even though he was convinced he had lost through fraud (in Texas and Illinois). In another book, his memoirs, he wrote that he was worried that a presidential recount would be "devastating to America’s foreign relations... I could not subject the country to such a situation".
And, he went on, if he had lost in a recount: "Charges of ‘sore loser’ would follow me through history and remove any possibility of a further political career."
Image source, Getty ImagesGetty Images
Nixon lost to Kennedy by 0.1% of the popular vote. It was the closest election in US history. Obsessively going over the result, Nixon calculated that a shift of just 11,085 votes in key districts of key states out of 69 million cast nationwide would have changed the results.
Donald Trump has spoken of contesting the result of this election. This time, however, may not be as close as 1960. The BBC’s poll of polls puts Trump behind Clinton by four percentage points.
Still, President Obama, on the stump in Michigan, said there had been states where he had won by only two votes a precinct. And it should be pointed out that Trump's campaign staffers - and Trump himself - say he is on course for an upset victory.
Image source, APFlorida Senator Marco Rubio said he does not think the Russian government will be able to interfere with the US electoral system on Tuesday.
But if they do, he added, Russia should "absolutely" face immediate consequences.
"Obviously, I want to win my re-election. And I don’t want Hillary Clinton to get elected," Rubio, a Republican who is favoured to win in Florida, told conservative radio host Hugh Hewitt.
"But more important than all of that, in my mind, is that America have elections that everyone can look at and say this is a legitimate election and we acknowledge the results. And so that’s what I expect to see tomorrow."
US intelligence officials have said they believe Russians are behind a hack on the Democratic National Committee earlier this year.
BBC Newsnight
Forget "locker room talk", what's really inside Trump's real locker room? The BBC's Emily Maitlis had a rummage round back in 2011.
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Watch more of Emily Maitlis' film Donald Trump: All American Billionaire here, external
Have a look at some of the behind-the-scenes pictures captured by a Getty photographer travelling with the Clinton campaign earlier in Pittsburgh.
Image source, Getty ImagesA quick prayer before her Pittsburgh speech
Image source, Getty ImagesClinton reviews the stage
Image source, Getty ImagesAnxious voters watch Clinton speak
Image source, Getty ImagesClinton urges the crowd not to accept a "dark and divisive vision" for the future
Image source, Getty ImagesFormer speaker of the House Dennis Hastert (L), Callista Gingrich, wife of Newt Gingrich, and Rudy Giuliani attend the annual meeting of the Iranian resistance in Villepinte, near Paris in 2013.
Chatter about who Trump would have in his cabinet has emerged.
Former New York Mayor Rudy Giuliani has reportedly been considered for attorney general while former speaker of the House Newt Gingrich's name has been mentioned for secretary of state, three campaign advisers told NBC, external.
Republican National Committee Chairman Reince Priebus has also been tipped as Trump's potential chief of staff.
Retired Lt Gen Michael Flynn is also reportedly under consideration for defence secretary or national security adviser.
Trump, however, has not participated in the transition talk, partly due to superstition, according to NBC.
BBC Newsnight
What happens when you look at the electoral map on a county-by-county basis - rather than state-by-state?
It looks totally different - as BBC Newsnight's tweet below shows - it's almost all red for Republican. The map below shows the 2012 election result.
But when you look at the map by state, the blues fill in. That's because cities have larger population densities, and that swings the result on a state-wide basis.
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All this week Emily Maitlis, external will be presenting a series of US election specials for BBC Newsnight. If you're in the UK, you can watch them here. You can also follow Newsnight on Facebook, external, Twitter, external and YouTube, external
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Rajini Vaidyanathan has been speaking to voters of all stripes during her visit of Hillsborough County, Florida.
She's been asking Floridians who they support, and despite 16 (plus!) months of campaigning, she's been finding that some voters are still undecided.
The sociologist Charles Murray says this election will destroy the Republicans. "The Republican Party cannot survive this debacle."Murray's book, Coming Apart, defined the poor, white working class who have powered Trump's "movement", writes the BBC's Paul Wood in Washington.
Murray told him: "This Trump phenomenon closes out the ability of the Republican brand to attract millennials...millennials are staying with the Democrats forever. Increasingly, the Republicans are going to be a party that is white and old.”
Image source, iStockMuch has changed in America since the 1950s
He continued: "The white working class was historically the central constituency of the Democratic Party…But in the 1960s there began a major shift among Democratic elites. It started with the civil rights revolution… It continued in the late 1960s as feminism took off and… into the 1970s as the gay liberation movement began. It wasn't just that they were ignoring the white working class… they were actively disparaging white working class males: they were sexist, they were racist, they were homophobic, they were neanderthals. So along comes Ronald Reagan…and they start voting Republican."
Image source, Getty ImagesPresident Ronald Reagan's legacy looms large in this election
"But they were never ideologically conservative, perhaps on social issues…they were never a limited government, free enterprise economics constituency. So what happened this year exposed that a big chunk of the Republican party is not conservative, in any sense of meaningful sense of that word. And that's a great deal of the Trump support. I personally think the Republican Party cannot survive this debacle this year. There will eventually be a replacement of the Republican Party by a populist party. Maybe the populist party will call itself 'Republicans' but Republicans who are limited government conservatives are going to have to find a new home."
We were live in North Carolina from one of Trump's final rallies.
What could the Republican candidate say to firm up any undecided voters? Share your questions and comments on @BBCNewsUS, external
President Obama has taken on the "attack-dog" role that's traditionally the purview of a ticket's vice-presidential candidate, writes the BBC's Paul Wood.
Speaking to a crowd in Ann Arbor, Michigan, the president went negative on Donald Trump in a big way, listing what he regards as Trump's faults. "Donald Trump is temperamentally unfit to be commander-in-chief," he said. "Over the weekend his campaign took away his Twitter account! If your closest advisers don't trust him to tweet then how can we trust him with the nuclear codes?" he told the audience, many of whom were millennials.
Image source, Getty ImagesVote Now, says the audience in Michigan
He went on with his list: "This is the first candidate in decades to hide his tax returns. He's not contributing to veterans, he's not contributing to our troops, he's not contributing to our outstanding public universities...This is not somebody who's a champion for working families.
"For all his tough talk about China, he's using Chinese steel in his hotels... In his 70 years of work, Donald Trump has never shown any concern about working people... except for the folks who clean up in his hotels."
Mr Obama also spoke about his record: "Tomorrow, you will choose whether we continue this journey of progress or whether it all goes out the window."
Meanwhile, in Pittsburgh, Clinton held a simultaneous rally saying: "We don't have to accept a dark and divisive vision for America.
"Our core values are being tested in this election," she said attempting to take the high ground - the traditional role for the candidate.
In Clinton's latest ad, she speaks into the camera for two minutes, asking voters to consider a few questions.
"It's not just my name and my opponent's name on the ballot; it's the kind of country we want for our children and grandchildren. Is America dark and divisive or hopeful and inclusive?"
"Our core values are being tested in this election," she says.
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Image source, Getty Images"It isn't that often in your life where you know you can make a difference," Obama says.
"This is one of those moments. Don't let it slip away."
He urges the crowd to make the right choice at the polls on Tuesday.
"It now comes down to you. It's in your hands," the president continues. "The fate of our democracy depends on what you do when you step into that voting booth tomorrow."
He quotes from the Declaration of Independence, saying: "We hold these truths to be self evident. That all men are created equal."
Obama reminds the crowd that his 2008 campaign slogan was "yes we can. Not 'yes I can'. Yes we can."
"You are in Pittsburgh," reads a sign at a Clinton rally, photographed by the BBC's Kim Ghattas, external.
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"He can't hear your boos but he'll hear your votes tomorrow," Obama tells the audience in Ann Arbor.
He then addresses Trump's claims that the President has failed on trade and manufacturing jobs.
"It's bad being arrogant when you know what you're talking about, but it's really bad being arrogant when you don't know what you're talking about," he says.
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While speaking at a rally in Pittsburgh, Pennsylvania, Hillary Clinton tells supporters the choice is clear.
"For those who are still making up your minds or thinking maybe it's not worth voting at all, let me just say, the choice in this election could not be clearer. It really is between division and unity.
"I believe America's best days are still ahead of us. That doesn't mean we don't have to work for it because we do," she continued.
Clinton says she understands people are frustrated and angry.
"There's fear, even anger in our country. But I've got to say, anger is not a plan my friends."
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Stumping for Clinton in front of a millennial crowd, Obama has been revealing a fondness for SpongeBob SquarePants.
"While I was out there campaigning (in 2008), you were watching Disney channel," Obama tells the mostly young crowd in Michigan after remarking that when he first ran for president, many of those in the crowd were only 10 years old.
"I had a soft spot for SpongeBob. SpongeBob was probably my favourite," he tells the crowd, saying that he would watch what his daughters liked to watch at the time.
Twitter has gone wild following the "SpongeBob 4 Prez" remark.
It's been the kind of election to make us all as gloomy as Squidward Tentacles...
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Image source, APUS President Barack Obama greets Chelsea Clinton in Ann Arbor, Michigan
Wearing a T-shirt with the slogan "Make Herstory" (instead of history), the daughter of Bill and Hillary Clinton introduces President Obama in Ann Arbor, Michigan.
"I'm fiercely, ridiculously proud to be her daughter," the 36-year-old says before heaping praise on the current president.
President Obama takes to the stage, where he is addressing more than 9,000 people.
"Tomorrow you will choose whether we continue this journey of progress or whether it all goes out the window," Obama tells the crowd.
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