Republican presidential front-runner Donald TrumpDonald John TrumpTrump cites tax cuts over judges as having biggest impact of his presidency Trump cites tax cuts over judges as having biggest impact of his presidency Ocasio-Cortez claps back at Trump after he cites her in tweet rejecting impeachment MORE has widened his lead over GOP challengers, according to a new poll.

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Trump garners support from 32 percent of Republican and Republican-leaning respondents in a CNN/ORC International Poll released Thursday morning, up 8 points from a similar sampling in August.

Retired neurosurgeon Ben CarsonBenjamin (Ben) Solomon CarsonMoulton confirms he'll miss first Democratic debate Moulton confirms he'll miss first Democratic debate Lawmakers battle over HUD protections for homeless transgender people MORE also saw increased support in the latest poll, gaining 10 points to 19 percent.

Former Florida Gov. Jeb Bush dropped 4 points to 9 percent.

Sen. Ted Cruz (R-Texas) remains in fourth place with 7 percent voter support, followed by former Arkansas Gov. Mike Huckabee and Wisconsin Gov. Scott Walker, who are tied at 5 percent.

Eleven other Republican contenders grab 3 percent or less among potential voters, pollsters found.

Sen. Marco Rubio (R-Fla.) saw the most significant shift among candidates outside the top five, CNN reported, falling 5 points since August.

The latest CNN/ORC survey, conducted by telephone last Friday through Tuesday among a random national polling of 1,012 adults, has a 4.5 percent margin of error for Republican voters.

--Mark Hensch contributed to this report, which was updated at 7:36 a.m.