Poll: Trump leads Cruz by 15 points nationwide
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Donald TrumpDonald John TrumpHouse Democrat slams Donald Trump Jr. for ‘serious case of amnesia’ after testimony Skier Lindsey Vonn: I don’t want to represent Trump at Olympics Poll: 4 in 10 Republicans think senior Trump advisers had improper dealings with Russia MORE has a sizable national lead over other Republican White House hopefuls the day of New Hampshire’s GOP presidential primary, according to a new weekly tracking poll.

Trump commands a 15-point edge over his nearest competition in the NBC News/Survey Monkey poll released Tuesday.

He receives 35 percent, topping Sen. Ted CruzRafael (Ted) Edward CruzDebbie Wasserman Schultz marks 10 years as breast cancer survivor Foreign agent registration is no magical shield against Russian propaganda Let Trump be Trump and he'll sail through 2020 MORE (R-Texas) at 20 percent and Sen. Marco RubioMarco Antonio RubioRyan pledges 'entitlement reform' in 2018 Richard Gere welcomes lawmakers' words of support for Tibet Dem lawmaker gives McConnell's tax reform op-ed a failing grade MORE (R-Fla.) at 17 percent.

Retired neurosurgeon Ben Carson is fourth with 7 percent, while a three-way tie exists for fifth place nationwide.

Former Gov. Jeb Bush (R-Fla.) is deadlocked with Govs. Chris Christie (R-N.J.) and John Kasich (R-Ohio) at 3 percent apiece. Former Hewlett-Packard CEO Carly Fiorina rounds out the GOP field with 2 percent of her own.

Tuesday’s results, however, also found less confidence that Trump will win the Republican nomination.

About 42 percent believe he will take that honor, pollsters found, but that result is down 20 points from last week.

Another 31 percent predict Cruz is getting the party’s nod, while 18 percent say the same about Rubio. Both men have seen 10-point bumps in that category since Iowa’s first-in-the-nation caucuses earlier this month.

NBC News/Survey Monkey conducted its latest sampling of 2,887 registered Republican voters nationwide via online interviews from Feb. 1-7. It has a 2.7 percent margin of error.