Poll: Donald Trump Leads GOP Primary Rivals, Trails Hillary Clinton, Bernie Sanders

The Democratic front-runner maintains a 12-point lead over the Republican candidate nationally, while tying with Bush and Walker.

Donald Trump attends the 2015 Hank's Yanks Golf Classic at Trump Golf Links Ferry Point on July 6, 2015 in New York City.

Photo by Andrew H. Walker/Getty Images

Donald Trump likes to say he's the only one of the 17 Republican presidential candidates who can beat Democratic front-runner Hillary Clinton, but a new poll from Quinnipiac University suggests that job may be better suited to one of Trump's rivals.

The real estate mogul gets support from just 36 percent of registered voters nationwide in a hypothetical match-up against Clinton, while the former secretary of state got support from 48 percent. By contrast, Clinton is in a statistical dead-heat against Jeb Bush in the poll, which was released Thursday, with the former Florida Governor getting the upper hand by a margin of 42–41 percent. Clinton also clings to a statistically insignificant lead over Wisconsin Governor Scott Walker, 44–43 percent.

Vermont Senator Bernie Sanders also leads Trump by 8 points, 45–37 percent, while Bush edges Sanders out 44–39 and Walker has the lead 42–37. Vice President Joe Biden, who has not declared himself a candidate, also maintains a 12-point lead over Trump, 49–37, while essentially tying with Bush and Walker. 

There is good news in the poll for Trump, who leads his party's field with support from 20 percent of Republicans compared to Walker, who gets the second most support in the survey with 13 percent. This is the latest in a series of polls to show Trump leading the pack. But 30 percent of Republicans also said they definitely would not support him, the most of any candidate in the poll. New Jersey Governor Chris Christie came in second in that category, with 15 percent of Republicans polled saying they definitely would not support him.

Trump was also rated unfavorable and not "honest and trustworthy" by a majority of voters, as was Clinton.

The live-interview poll was conducted between July 23 and July 28 using 1,644 registered voters resulting in a margin of error of  +/- 2.4 percentage points for questions asked of all voters. The survey included 710 Republicans, resulting in a margin of error of +/- 3.7 percentage points.