Everyone on the planet understood that this piece by David Brooks is satire.

Everyone realized that this line — “He once canceled a corporate retreat at which Abba had been hired to play, saying he found the band’s music ‘too angry.’ ” — is a joke.

Everyone, that is, except MSNBC’s fact-challenged fact checker, Ezra Klein. On Thursday,while guest-hosting for hyper-partisan liberal Ed Schultz,  Klein reported the ABBA cancellation as fact.

A few Twitter users (the entire universe of Ed Show viewers?) noticed:

Klein (to his credit) admitted that an error was made, although it’s telling that he says “our” rather than “my”:

Do you think maybe he learned a lesson? Not likely. Just two days later, Klein went right back to smearing Romney.

Update: Look at this:

Previously:

Desperate journo-tool Ezra Klein manufactures another Romney smear

Ezra Klein’s lie: Now you see it, now you don’t!

‘Fact checker’ Ezra Klein doubles down on Janesville GM auto plant lie

Meet MSNBC’s fact-checker: Ezra Klein?!? Update: Klein’s blog falsely claims that Janesville auto plant closed in June 2008