Endorsements from George W. Bush and Sarah Palin would have the biggest impact on Republican voters, trumping the support from other GOP figures such as John McCain and Donald Trump, according to a poll Friday.

The majority of Republican and Republican-leaning voters said in a Pew Research Center survey that endorsements from six prominent GOP figures — Bush, Palin, McCain, Trump, Herman Cain and Michele Bachmann — would make no difference in their vote.

But of the six political figures listed, an endorsement from Bush was found to have the most positive impact on voters, with 28 percent saying they would be more likely to vote for a candidate who garnered the former president’s backing. He was followed by Palin, whose endorsement was shown as swaying 23 percent of GOP voters to choose the candidate supported by the former Alaska governor.

Bush and Palin also were found to have the weakest negative impact on GOP voters — 11 percent said a Bush endorsement would make them less likely to vote for a candidate, while 15 percent said the same for Palin.

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