You Can't Make this Stuff Up.

Okay, Krugman can, but this is too funny to pass by. As Taranto notes in the Best of the Web:

Where Credit Is Due
Further evidence of Philip Klein's observation that the Angry Left really, really hates Rudy Giuliani: Former Enron adviser Paul Krugman devoted his column last Friday to attacking the former New York mayor. Claims Krugman:

Mr. Giuliani has a habit of saying things, on issues that range from health care to national security, that are demonstrably untrue.

Hmm, where have we heard that before? Oh yeah, it was from the New York Times's then-ombudsman, Daniel Okrent:

Paul Krugman has the disturbing habit of shaping, slicing and selectively citing numbers in a fashion that pleases his acolytes but leaves him open to substantive assaults.

OK, it's not word-for-word identical, but the idea is pretty much the same. Krugman really should have credited his source.