A majority of Republicans wish they had selected a different presidential nominee than Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE, a new poll finds.

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A new HuffPost/YouGov poll released Monday found that 54 percent of Republican and GOP-leaning voters believe Trump isn’t the best choice as the party’s nominee, while 35 percent are satisfied with the real estate mogul as the party's standard-bearer.

There’s a jump in dissatisfaction since the same poll in June, which at the time found that 44 percent believed Trump was the best option, while another 44 percent didn’t.

Trump was one of 17 Republican candidates running for president. When asked whom they’d like to win in a primary do-over, 29 percent of those selected Trump, 15 percent picked Sen. Ted Cruz Rafael (Ted) Edward CruzThe Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy Murkowski: Supreme Court nominee should not be taken up before election Battle lines drawn on precedent in Supreme Court fight MORE (R-Texas) and 14 percent chose Sen. Marco Rubio Marco Antonio RubioMurky TikTok deal raises questions about China's role Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Florida senators pushing to keep Daylight Savings Time during pandemic MORE (R-Fla.). Several other names received less than 10 percent each.

On the other side of aisle, 56 percent of Democratic and Democratic-leaning voters are content with Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE as their party’s nominee, while 32 percent believe there is a better option. This is up by 3 percentage points since the same poll in June.

Forty-seven percent of those voters would still pick Clinton if the primary was held again, but Sen. Bernie Sanders Bernie SandersJacobin editor: Primarying Schumer would force him to fight Trump's SCOTUS nominee Trump campaign plays up Biden's skills ahead of Cleveland debate: 'He's actually quite good' Young voters backing Biden by 2:1 margin: poll MORE (I-Vt.) was close, at 42 percent. Former Maryland Gov. Martin O’Malley trailed far behind, at 3 percent.

The poll was conducted Aug. 24–25, and 1,000 adults completed interviews.