Trump, Sanders gaining ground in NH
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Republican front-runner Donald TrumpDonald TrumpPence takes victory lap at CPAC: ‘This is our time’ President Trump, immigrants are not 'bad dudes' Zuckerberg group donated to Trump transition MORE and Democratic presidential candidate Bernie SandersBernie SandersSanders: 'If you don't have the guts to face your constituents,' you shouldn't be in Congress President Trump, immigrants are not 'bad dudes' Why the GOP cannot sweep its Milo scandal under the rug MORE are seeing increased support atop their parties' respective fields in New Hampshire, according to a new Franklin Pierce University-Boston Herald poll.

Trump holds a 25-point lead over his closest rival, Ted CruzTed CruzThe Hill's 12:30 Report Cruz predicts another Supreme Court vacancy this year Cruz: Democratic base is 'bat-crap crazy' MORE, according to Sunday's poll. He has 38 percent of support among likely GOP primary voters, with Cruz taking only 13 percent. Former Florida Gov. Jeb Bush and Florida Sen. Marco RubioMarco RubioRubio brushes off demonstrator asking about town halls A guide to the committees: Senate Schumer: GOP will break from Trump within months MORE follow with 10 percent. Ohio Gov. John Kasich comes in fifth place with 8 percent. 

Trump had 33 percent support in a similar poll a week ago.

But 44 percent of Republican primary voters said in the poll they could still change their minds about their choice of candidate. Still, 57 percent of Republican primary voters in New Hampshire believe Trump will be the nominee, according to the poll.

In the Democratic race, Sanders hold a 20-point lead over Hillary ClintonHillary Rodham ClintonDNI official challenges reports of low morale in intelligence community Why the GOP cannot sweep its Milo scandal under the rug Dems worry too much about upsetting others. That needs to stop. MORE among likely Granite State primary voters, according to the poll. Sanders has 57 percent support over Clinton's 37 percent. Sanders's support is is 2 points higher than last week's poll.

About 78 percent of likely primary voters said they won't be changing their minds about their decision.

The polls, conducted between Jan. 26-30, have a 4.7 percent margin of error for Republicans and 4.9 percent margi of error for Democrats.

Sanders and Trump also hold large leads in the RealClearPolitics average of polls in New Hampshire. Trump has an 18.2 point lead, with 31.4 percent support, over John Kasich, who has only 13.2 percent. Sanders holds a 14.3 point lead over Clinton in the RealClearPolitics average, taking 53.7 percent of the vote compared to Clinton who only has 39.4 percent.