When Newt Gingrich fulminates, the name of Saul Alinsky springs easily to his lips. President Obama is, you know, a “Saul Alinsky radical.” The race for president is “American exceptionalism versus the radicalism of Saul Alinsky.”

Just about everybody who knows anything about Alinsky has weighed in on Gingrich’s zany offensive, often with a guess-it-takes-one-to-know-one air of amused irony. For instance, here’s how the Tribune‘s Eric Zorn began his remarks: “I suspect Saul Alinsky would nod with grudging admiration at the way GOP presidential hopeful Newt Gingrich repeatedly injects his name into speeches and interviews.”

And here’s Philip Klein in the conservative Washington Examiner: