Presidential candidates take the stage at the CNBC Republican presidential debate at University of Colorado's Coors Events Center, Oct. 28, 2015, in Boulder, Colorado. From left are Jeb Bush, Sen. Marco Rubio of Florida, Donald Trump, Ben Carson, Carly Fiorina, Sen. Ted Cruz of Texas. Justin Sullivan/Getty Images

The Republican presidential hopefuls will square off for the third GOP primary debate Wednesday in Boulder, Colorado -- and some candidates have more to lose than others. Since their party support can weigh on debate performance, poll numbers will be wagered when the GOP candidates take the stage.

In one of the latest polls, businessman Donald Trump showed he has the most at stake. The Associated Press-GfK survey released Monday found that Trump was viewed as the strongest candidate, with seven in 10 Republican registered voters saying he could win the office if he gains the party's nomination. Retired neurosurgeon Ben Carson was the next most electable -- six in 10 say the same for Carson.

The only other candidates seen as electable by more than 50 percent of Republicans surveyed were former Florida Gov. Jeb Bush and U.S. Sen. Marco Rubio, also from Florida. Six in 10 Republicans said Bush could win the 2016 race, followed by 54 percent who view Florida Sen. Marco Rubio as having the potential to win the general election.

The AP-GfK survey polled 1,027 Republican voters and was conducted online between Oct. 15-19. For the poll, the margin of sampling error for all respondents is plus or minus 3.3 percentage points.

Trump leads most national polls, but a new poll from Monmouth University surveyed Iowa Republican caucusgoers and found that Carson took a double-digit lead over Trump. The retired neurosurgeon earned 32 percent of the vote, while Trump held second place with 18 percent.

Current Polling of Republican Candidates | InsideGov

However, Trump remains in the lead for GOP primary nomination in the latest CBS News poll, released Oct. 11. According to the poll, here's how Republican primary voters would vote:

1. Donald Trump -- 27%

2. Ben Carson -- 21%

3. Ted Cruz -- 9%

4. Marco Rubio -- 8%

5. Jeb Bush -- 6%

5.. Carly Fiorina -- 2%

7. Rand Paul -- 4%

8. Chris Christie -- 3%

9. John Kasich -- 2%

9. Mike Huckabee -- 2%

11. Rick Santorum -- 1%

12. Bobby Jindal -- 0%

13. Jim Gilmore -- 0%

13. Lindsey Graham -- 0%