Taken cumulatively, Letterman’s mockery is about much more than expressing contempt for the popular GOP governor. It’s a handy device to deride a broad class of working-class and middle-class women he holds in contempt:

“You know, she reminds me, she looks like the flight attendant who won’t give you a second can of Pepsi. No, you’ve had enough. We’re landing. Looks like the waitress at the coffee shop who draws a little smiley face on your check. Have a nice day.”

“She looks like the dip sample lady at Safeway. She looks like the nurse who weighs you and then makes you sit alone in your underwear for 20 minutes. She looks like the Olive Garden hostess who says, ‘I’m sorry, your table isn’t ready yet.’ She looks like the infomercial lady who says she made $64,000 a month flipping condos.”

“She looks like the lady at the bakery who yells out ’44! 45!’ She looks like a real estate agent whose picture you see on the bus stop bench. That’s who she looks like. She looks like the lady who has a chain of cupcake stores.”

In November 2008, Letterman told tanking CBS News anchor Katie Couric that he was “aroused” by Palin. In March 2009, Letterman attacked Bristol and snickered about her being “knocked up” again.