Bernie Madoff is not a name you expect to hear an attorney-general candidate tout as part of his campaign — but Eric Schneiderman wants the world to know he’s got he support of the “Original Madoff Whistleblower.”

Harry Markopolos, the independent financial-fraud investigator who for nine years tried to tip the Securities & Exchange Commission to Madoff’s billion-dollar Ponzi scheme, endorsed Schneiderman yesterday.

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In other offbeat endorsements, Staten Island GOP congressional candidate Michael Grimm, a former FBI agent, read a letter of support from “Jack Falcone,” a k a Joaquin “Jack” Garcia, who for two years worked undercover as a Gambino mobster.

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Et tu, Democrats?

An Associated Press poll out yesterday found that a surprising 47 percent of Dems think President Obama should be challenged in a 2012 primary.

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The Dem candidate for Rhode Island governor who said Obama could “shove it” conceded yesterday he wishes he had not spoken as he did.

Frank Caprio said “I wish I had chosen different language,” and added that he respected the president’s decision not to make an endorsement in the race.