Michelle Malkin is on the case:

Michelle Malkin Fights For Truth: Can Gun-Grabber Gabby Giffords Even Write Stuff?

A liberal fraud was pushed on you this evening, friends. A dirty untruth, pushed upon you by a sinister plot to take away your weapons. Several news outlets — including your vaunted Washington Post — published a photograph of the handwritten notes former Rep. Gabby Giffords read from at a gun-control hearing this afternoon.

The lie? Giffords is not the one who wrote the notes.