HANOVER, N.H. -
Three weeks from Election Day and President Barack Obama and Governor Mitt Romney are about to go head to head for a second time.
"In political science we think debates don't matter that much, on average," said Dartmouth College Assistant Professor of Government Brandon Nyhan
But this time around Nyhan says that's not the case.
Nearly two weeks ago, most people agree Romney won handily over Obama, who at times appeared like he didn't want to be there.
"If Obama does poorly the panic that will ensue could change the election. Democrats are very nervous and their enthusiasm could wean if Obama seems like he's really off his game," said Nyhan.
Which Nyhan says is the opposite for Romney.
"The challenge he faces is to show that he is a plausible alternative," said Nyhan.
While Tuesday's debate is important to many people, political experts say people in the Granite State will be watching closely.
That's because most polls show the two candidates are in a virtual tie.
Tuesday's debate will also be different.
This time the candidates will receive questions from the 82 audience members.
"There will be much more of an emphasis of connecting to voters in the room as opposed to playing directly to the camera," said Nyhan.
Nyhan says he expects it to focus on jobs and the economy.
He says there could be a curveball question too, but not too off focus.
"Do you think we'll get a boxers or briefs question?" said Fox44
"I hope not," said Nyhan.
Tuesday's debate will be the third overall.
Last week Vice President Joe Biden and Congressman Paul Ryan squared off in their only debate.
While Romney appears to have won the first, most believe the vice presidential debate ended in a draw.
Romney and Obama will face each other one more time before Election Day.
