Trump, Sanders gaining ground in NH
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Republican front-runner Donald TrumpDonald John TrumpBiden slams Trump over golf gif hitting Clinton Trump Jr. declines further Secret Service protection: report Report: Mueller warned Manafort to expect an indictment MORE and Democratic presidential candidate Bernie SandersBernard (Bernie) SandersOvernight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill Dems fear lasting damage from Clinton-Sanders fight 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 CruzRafael (Ted) Edward CruzSenate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Overnight Finance: CBO to release limited analysis of ObamaCare repeal bill | DOJ investigates Equifax stock sales | House weighs tougher rules for banks dealing with North Korea GOP state lawmakers meet to plan possible constitutional convention 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 Antonio RubioOvernight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill Trump bets base will stick with him on immigration 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 Diane Rodham ClintonBiden slams Trump over golf gif hitting Clinton Overnight Cybersecurity: Equifax hit by earlier hack | What to know about Kaspersky controversy | Officials review EU-US privacy pact Overnight Tech: Equifax hit by earlier undisclosed hack | Facebook takes heat over Russian ads | Alt-right Twitter rival may lose domain 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.