GOP front-runner Donald Trump is aiming for his first win in New Hampshire's fast-approaching primary.

Donald Trump poses with people during a campaign rally at Plymouth State University on February 7, 2016 in Holderness, New Hampshire. (Photo by Joe Raedle/Getty Images)

Meanwhile rival Republican candidates including former Florida Gov. Jeb Bush, said their campaigns will go on no matter what the outcome Tuesday.

Trump said he doesn't need to win New Hampshire, but would like to.

Republican hopeful Sen. Marco Rubio continues to downplay his rough outing in Saturday night's GOP debate, while touting his overall campaign momentum after his third-place finish in the Iowa caucuses.

For Republicans New Jersey Gov. Chris Christie, Ohio Gov. John Kasich, and Jeb Bush the task is to make sure the closing argument here isn't their last.

All are in the back of recent polls.