With only Florida's 29 electoral votes still undecided, Mr Obama won 303 electoral votes to Mr Romney's 206.
BBC: President Barack Obama defeats Romney to win re-election
With 9 percent of those polled still undecided, negative ads are flooding Missouri's airwaves.
CNN: Missouri heavyweights slug it out in heated Senate race
John Hoover said he's still undecided but that Obama did better than he expected.
But there were still undecided voters to be found, such as Renee Mullins of Fairfax.
With 15 games left and playoff seeding still undecided, Woodson doesn't want his team easing up.
Recent state polls put Al Gore ahead by around five points, with unusually few voters still undecided.
And so many of those women - estimates range from 25 to 40 percent - are still undecided.
As a result, the company is still undecided on building a new diesel plant in the country.
Mr Le Pen may be trailing in fourth place, but some 45% of voters say they are still undecided.
That number's even higher among likely Republican caucus-goers, with 40 percent still undecided on their choice for the nominee.
Campaign groups in favour of the new ban are taking comfort from the fact that some governments are still undecided.
Democrats so far have picked up seven Senate seats in this year's election, with seats in Minnesota and Georgia still undecided.
CNN: Board rules against Franken in Minnesota Senate recount
Why are so many people still undecided this close to the primary?
The result of the February election remains highly uncertain with more than a third of voters still undecided, according to opinion polls.
As of Friday night, as many as three dozen were still undecided and at least 21 Democrats have firmly decided to vote no.
As both parties point out, barely a tenth of the electorate is still undecided, compared with a third or more in previous years.
So NPR and the Indianapolis Star invited a few of the voters who said they were still undecided to watch the first presidential debate together.
Glosser says she is still undecided about which candidate to support.
If you are still undecided about Big Data, then I strongly suggest that you take a stance to getting on with a Big Data project.
Exactly what form that will take is still undecided, he adds.
The form that such public money would take is still undecided.
With Palin by his side, McCain has been seeing big crowds and newfound energy at his recent campaign events. iReport.com: Are you still undecided?
Stena Line had earlier cancelled its 0315GMT sailing on Friday from Fishguard, west Wales, to Rosslare, but was still undecided whether the 1430GMT sailing would go ahead.
With recent polls showing about 10 percent of voters still undecided, the debates could prove critical in deciding the election, according to Paul Steinhauser, CNN's deputy political editor.
Surprises cannot be ruled out: many voters are still undecided.
However, with millions of still undecided voters, the possibility of another hung election and grand coalition government, as in the last federal elections in 2005, cannot be discounted.
WSJ: Daniel Schwammenthal: Germany��s Free-Market FDP Is on the Rise
In appearances on both the east and west coast of Florida, the president assured seniors still undecided about the plans that the new drug coverage is a good deal.
The result may turn on whether the 14% or so who tell pollsters they cannot bring themselves to vote for either candidate change their mind (another 6% are still undecided).
I'm not sure if Mr Bayrou has a realistic chance of being elected, to be honest, but with so many French voters still undecided, nothing is certain at this stage.
Zubeidat Tsarnaeva has said she is still undecided whether to go, AP news agency reports, because she was charged with shoplifting in the US last year and fears arrest if she returns.
BBC: Boston bombing suspects' mother regrets emigration to US
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