Ed Schultz broke out a new weapon to counter Rush Limbaugh's charges against Democratic voters: a recent study from Fairleigh Dickinson University that found people who watch Fox News are less informed than people who don't watch any news at all.
On Monday, Limbaugh alleged that "ignorant and uninformed voters" put President Obama into office, and that Democrats were trying to dumb down students in school.
In his Psychotalk segment on Monday, Schultz hammered Limbaugh with the study. He appeared to relish the results, which showed that Fox News viewers did worse on questions about world events than people who don't watch news.
"Misinformation is the cornerstone of the Republican election strategy," Schultz alleged. He replayed clips of Megyn Kelly calling pepper spray "a food product," Sean Hannity referring to "death panels" as part of health care reform, and Gretchen Carlson discussing a theory that aliens could attack the earth to stop global warming.
"So Fox News viewers are the most uninformed and most Fox News viewers are Republicans," Schultz concluded, citing another poll. Watch the segment in the clip above.
View a slideshow more Limbaugh feuds below: