Such is the case of Joan Walsh, Editor-in-Chief of Salon, who recently penned a piece titled, The Shame of Right-Wing "Journalism". The article includes the sub-heading, "Andrew Breitbart and Tucker Carlson distort facts to smear liberals, and it works. What liberals should learn."
Apparently, it didn't take long for liberals to learn at all, as Walsh was quickly called out by Chris Hayes of The Nation, feeling it necessary to make ‘a factual correction' in the piece.
Oh, sweet irony.
Walsh updates her piece with Hayes' response at the end, and admitting to the error, but it remains an amusing endeavor to combat alleged distorted facts with actual distorted facts.
The problem, as Hayes explains it to Walsh (emphasis mine throughout):

CNN contributor Roland Martin’s
During a report on Monday’s Anderson Cooper 360 program, CNN investigative correspondent Drew Griffin presented many of the missing details about the relationship between Barack Obama and left-wing terrorist William Ayers that 
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