REUTERS - There is no sign that Donald Trump's raucous first presidential debate is hurting his support among party voters, with the latest Reuters/Ipsos poll showing he still has a big lead over his rivals for the Republican presidential nomination.
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Trump's staying power is defying predictions of political doom and leading some Republicans to explore ways to persuade him not to pursue a third-party bid should he falter in his quest for the Republican nomination in 2016.
Trump led the party's 17-strong 2016 presidential field with the backing of 24 percent of Republican voters, unchanged from before Thursday's televised debate, the Reuters/Ipsos poll found.
His closest rival, former Florida Governor Jeb Bush, trails at 12 percent, down from 17 percent before the debate. No other candidate earned more than 8 percent in the online poll, conducted between the end of the debate and Sunday.
Rather than chastened, Trump was emboldened by his debate performance, despite strong criticism for boorish comments he made about Fox News debate moderator Megyn Kelly when she asked about his past derogatory comments about women.
Trump, dumped from a keynote speech Saturday night in Atlanta by the influential conservative group RedState, tweeted on Monday he had been assured by Fox News president Roger Ailes that the network would treat him fairly.
"Roger Ailes just called. He is a great guy & assures me that 'Trump' will be treated fairly on @FoxNews. His word is always good!" the New York billionaire said.
With the next debate coming up Sept. 16 in California, hosted by CNN, some Republicans have discussed possible ways to make his participation dependent on forswearing talk of an independent presidential bid. Trump declined to rule out such a run in Thursday's debate.
"Why should we give this guy, any person, 25 million eyeballs to help his candidacy or her candidacy for an independent run?" said a member of the Republican National Committee, referring to the 25 million people who watched the Fox debate.
Other committee members say trying to bump him from the debate could risk serious blowback from Trump, and he could always break any promise not to make a third-party bid.
"The best way to handle it is to let it play out," said Steve Duprey, an RNC committee member from New Hampshire.
Trump has been a focus of controversy since June, when he entered the race for the Republican nomination in the November 2016 election.
Harsh comments about Mexican immigrants drew widespread condemnation and prompted some business partners to sever ties, while his feud with Arizona Senator John McCain, the party's 2008 presidential nominee, has angered many party officials.
But the drama has done little so far to dent Trump's appeal among less affluent, conservative-leaning voters who say his brash style is needed to shake up an overly cautious political system and that his vast wealth would help him resist corrupting influences.
"They want someone who's an outsider, who can upset the applecart," said Craig Robinson, a former political director of the Iowa Republican Party. "They're willing to deal with a less-than-perfect candidate if they believe it will actually change things in Washington."
Former technology executive Carly Fiorina, who drew favorable reviews in a separate debate for lesser-known candidates, also gained ground in the Reuters/Ipsos poll, with her support jumping from 1 percent to 6 percent among Republicans.
The online poll of 278 self-identified Republicans has a credibility interval of 6.7 percentage points.
Despite Trump's outsider appeal, he fared no better against Democratic front-runner Hillary Clinton than other Republican candidates. In a head-to-head match-up, Clinton would beat Trump by 43 percent to 29 percent, the poll found. Clinton would beat other Republican candidates such as Bush, Florida Senator Marco Rubio and Texas Senator Ted Cruz by similar margins.
The debate did little to change Republican voters' opinions of Trump, the poll found. One-third said they liked him more after the debate, one-third said they liked him less, and the remaining third said their opinions had not changed.
Other candidates fared better. Voters were more likely to say the debate had improved their opinions of Rubio, Cruz, Fiorina, retired neurosurgeon Ben Carson, Wisconsin Governor Scott Walker and former Arkansas Governor Mike Huckabee.
Only Kentucky Senator Rand Paul appears to have been hurt, as 8 percent said their opinion of him improved while 22 percent said they felt more negative.