Donald Trump's best buds.

• Author: Lueders, Bill
• Position: SMOKING GUN

Perhaps Donald Trump's most infamous fan is former Ku Klux Klan Grand Wizard David Duke, who told his bigoted radio audience it would be "treason to your heritage" not to vote for the Republican presidential frontrunner, who says all the right things. The Donald was slow to reject Duke's support, but there are many other high-profile backers whom Trump has embraced. Here are some of them:

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CHRIS CHRISTIE, governor of New Jersey, who as a rival candidate for the GOP nomination questioned Trump's temperament and experience: "I just don't think that he's suited to be President of the United States."

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JOE ARPAIO, sheriff of Maricopa County, Arizona, described by The Atlantic as "the most unrepentantly lawless lawman in America," with a documented history of overt racial profiling and disrespect for judicial authority.

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BRAD ZAUN, Republican state senator of Iowa, who has urged the defunding of Planned Parenthood in his state, calling it "just a slaughterhouse for the innocent, unborn babies."

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JAN BREWER, former governor of Arizona, who claimed that illegal immigration was a form of "terrorist attack," and signed into law not just the nation's harshest anti-immigrant law but also a ban on teaching ethnic studies in Arizona schools.

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SUE EVERHART, former chair of Georgia's Republican Party, who once mused about same-sex couples, "If it was natural, they would have the equipment to have a sexual relationship."

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SARAH PALIN, former governor of Alaska, who in her endorsement speech, Trump at her side, actually said, among other things, "He's got the guts to...