Donald Trump currently leads the Republican pack of presidential nominees by a significant margin.

Twenty percent of Republican and Republican-leaning voters said they would vote for Trump if the primary were held today, according to a new Quinnipiac University national poll. The real estate mogul is well ahead of the other two candidates who earn double-digit support: Wisconsin Gov. Scott Walker (13 percent) and former Florida Gov. Jeb Bush (10 percent).

Pediatric neurosurgeon Ben Carson, former Arkansas Gov. Mike Huckabee, Kentucky Sen. Rand Paul and Florida Sen. Marco Rubio are all tied in fourth place with six percent. Ohio Gov. John Kasich and Texas Sen. Ted Cruz both garner 5 percent of support.

Twelve percent of GOP voters are undecided.

However, despite the strong support, 30 percent of Republican voters would "no way" support Trump. He also trails any of the leading three Democratic presidential candidates by wide margins in general election match-ups.

Though the Democratic front-runner, former Secretary of State Hillary Clinton, still maintains a wide advantage over her competitors, her favorability rating has reach an all-time low: 42 percent.

Only one in three male voters views her favorably, while female voters remain split: 47 percent favorable, 43 percent unfavorable.

Clinton doesn't struggle against the Republican front-runner Trump, though. However, against Bush and Walker, she only edges them by 1 percentage point each.

The poll of roughly 1,600 self-identified registered voters nationwide was conducted July 23-28 with a margin of error of plus or minus 2.4 percentage points. Subsamples of 681 Democrats and 710 Republicans have margins of error of plus or minus 3.8 and 3.7 percentage points, respectively.