Poll: Most Republicans think Trump will win nomination
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A majority of Republican voters believe that Donald TrumpDonald John TrumpDems flip Wisconsin state Senate seat Sessions: 'We should be like Canada' in how we take in immigrants GOP rep: 'Sheet metal and garbage' everywhere in Haiti MORE will be their party’s presidential nominee, according to a Rasmussen poll released Friday.

The poll found that 57 percent of Republican voters think Trump is likely to win the nomination, up from 27 percent two months ago, when the billionaire businessman officially launched his campaign.

Only 15 percent of Republican voters see a Trump nomination as "not at all likely," down from 29 percent over the same span.

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Among all voters, 49 percent believe Trump will be the Republican candidate for president, up from 23 percent.

Voter confidence in Trump may be a reflection of national polls that have the businessman up by double-digits in the Republican primary.

RealClearPolitics average of polls has Trump leading the primary field with 22 percent support, followed by former Florida Gov. Jeb Bush at 10 percent and retired neurosurgeon Ben Carson at 9 percent. Wisconsin Gov. Scott Walker, Sen. Marco RubioMarco Antonio RubioOvernight Cybersecurity: Bipartisan bill aims to deter election interference | Russian hackers target Senate | House Intel panel subpoenas Bannon | DHS giving 'active defense' cyber tools to private sector Senators unveil bipartisan push to deter future election interference Puerto Rico's children need recovery funds MORE (R-Fla.) and Sen. Ted CruzRafael (Ted) Edward CruzWith religious liberty memo, Trump made America free to be faithful again Interstate compacts aren't the right way to fix occupational licensing laws Texas Dem: ‘I don’t know what to believe’ about what Trump wants for wall MORE (R-Texas) are tied for fourth with 7 percent each.

The Rasmussen poll surveyed 1,000 likely voters from Aug. 19-20 and has a 3-point margin of error.