I missed what he said originally (I'm not a regular viewer of his show), but I finally saw it this morning in that article. It was pretty bad. He was upset that Palin compared the national debt to slavery, and he said...
"In 1756, he records that a slave named Darby 'catched eating kanes had him well flogged and pickled, then made Hector, another slave, s-h-i-t in his mouth,'" Bashir said. "When Mrs. Palin invokes slavery, she doesn’t just prove her rank ignorance. She confirms if anyone truly qualified for a dose of discipline from Thomas Thistlewood, she would be the outstanding candidate."
Whoo. OK, that's definitely worse than comparing slavery to the national debt. That's very bad. That's so bad, you have to wonder how a producer didn't stop him before he did it. It was obviously written on the teleprompter.