The biggest news out on the campaign trail today: a side from Senator Hillary Clinton we haven't seen before.
When a woman asked Hillary Clinton how she does it, how she keeps up the constant campaigning, Clinton responded with unexpected emotion.
"This is very personal for me, it's not just political, it's not just public. I see what's happening. We have to reverse it," said Hillary Clinton (D) New York.
John Edwards seized on the moment.
"Presidential campaigns are tough business, but being president of the United States is also tough business," said former North Carolina Senator John Edwards.
Once the front runner, Clinton has lost the lead in New Hampshire. The latest polls show Obama ahead of her by as much as 13 points.
"I am riding this wave -- you're the wave, and I'm riding it," said Senator Barack Obama (D) Illinois.
The candidates are in overdrive. Mike Huckabee took a break for a "Huckaburger."
"Anyone who eats this will lose weight, will vote for Mike Huckabee and will live forever," said former Arkansas governor (R) Mike Huckabee.
But this is Big Mac country. John McCain is leading the Republicans, four to six points ahead of his closest rival Mitt Romney.
"Tomorrow is the day; when we will tell the world that the state of New Hampshire has again chosen the next president of the United States," said Senator John McCain (R) Arizona.
Romney can't be counted out. He was the governor of the neighboring state and is pitching himself as a Washington outsider.
"If it has ever been a time we needed a change in Washington it is now," said former Massachusetts governor (R) Mitt Romney.
Don't expect the candidates to get much sleep tonight. Edwards is on a 36-hour marathon, McCain is hitting seven cities - and Barack Obama's doctors have told him he's losing his voice and that he needs to "shut up." None of us expect him to do that.
Read more about Mark Matthews trip to the New Hampshire primary by clicking on The Back Story
