It's almost go time in New Hampshire, with voters in the nation's first presidential primary heading to the polls Tuesday. For Republican front-runner Donald Trump, there is pressure on him to pull off a win. Grace Rauh reports from New Hampshire.

MANCHESTER, NEW HAMPSHIRE - On the last full day of campaigning before Tuesday's primary, Donald Trump went small - very small. He is finally engaging in the kind of one-on-one voter interaction that many of his Republican rivals have been doing for weeks.

His intimate town hall meetings Monday may have been less about swaying the undecided voters in the room and more about showing a willingness to be questioned by the public.

Trump proved to be agile in that setting. He successfully disarmed a woman who asked whether he would return a campaign contribution from a white separatist. Trump said he would give the money back.

"Don't be so angry. I don't even know who he is," Trump said. "Who the hell is he? I don't know."

He ducked a question about climate change from a New Hampshire man concerned about the moose population.

"I'll look at that. That's incredible. Yeah, go ahead," Trump said.

And Trump reiterated his support for waterboarding, an interrogation technique that the Obama administration considers torture.

"I'm totally in favor of waterboarding. But I'm also in favor of far worse than waterboarding because people are chopping off the heads of our people," Trump said. "They're chopping off the heads. They're chopping off the heads."

Trump has a sizable lead in the polls in New Hampshire, pulling in more than twice the support of Florida Sen. Marco Rubio, who is running in second place. After a bruising second-place finish in Iowa that dealt a blow to his campaign, Trump needs a win here. Or as he might say, a huge one.

"There is nothing wrong about being angry," Trump said. "I hope you are angry enough to go out and vote tomorrow, folks."

Trump made his final pitch before primary day to a much larger audience at a rally in Manchester. Winning is a central theme of Trump's campaign. Now, he must prove he can do it.