A new poll shows presidential candidate Herman Cain losing support among GOP voters after reports of past allegations of sexual harassment.



The poll from Reuters/Ipsos found that 57 percent of Republican voters view Cain favorably, a drop from 66 percent a week ago, before claims of sexual harassment surfaced from when Cain was president of the National Restaurant Association.



The poll found the former Godfather's Pizza CEO's favorability rating declined from 37 percent to 32 percent among all registered voters.



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Republican-leaning voters are more likely to dismiss the allegations against Cain, however — Reuters/Ipsos found that 53 percent of respondents believe the claims are true, while only 39 percent of Republicans do.



The survey is the first to show the controversy over the harassment claims taking their toll on Cain's campaign.



In an ABC News/Washington Post poll released Friday, 69 percent of Republicans and GOP-leaning independents said the reports of harassment would not affect their backing for Cain. Fifty-five percent said the allegations were not a “serious matter.” Of those who said the claims were serious, 52 percent said they would be less likely to vote for Cain.



Cain’s campaign has been on the defensive after reports surfaced last week that the National Restaurant Association had settled claims from two female employees who had alleged they were sexually harassed by Cain when he was president of the organization in the late 1990s.



Since the reports first emerged, Cain has denied harassing any employees.



On Saturday, following a one-on-one debate with former House Speaker Newt Gingrich (Ga.), Cain attempted to move beyond the controversy, refusing to answer questions and saying that the campaign was “getting back on message.”

