I'm laying odds that was sarcasm....
The young man in Tucson who shot Rep. Gabrielle Giffords (D-AZ) and killed several other people at a shopping center turned out to be a left-winger. The people on the left who blamed Sarah Palin for inciting that shooting have never apologized, and will never apologize.
The shooter was described by an acquaintance from high school as "very left-wing." He was a fanboy of a German documentary called Zeitgeist, which is anti-America, anti-capitalist and anti-Christian. These three "antis" are hallmarks of left-wing rhetoric.
And whenever these links to left-wing ideology are found by law enforcement, the left-wing news media establishment is silent. Imagine how loudly they'd be screaming if these links really were traced to Sarah Palin and Rush Limbaugh.