Campaign for Our Future's Rick Perlstein (and author of the soon-to-be* published Nixonland) went head to talking head with Bush speechwriter and neo-con David Frum for the latest edition of BloggingheadsTV. The entire discussion is about 45 minutes in length, but this excerpt is instructive to the whole. Frum authoritatively starts asserting his opinions as facts about how Lyndon Johnson could have saved the Democratic party in the late 1960s "if there had been a police response that sent the message, 'this is not going to be tolerated, no more riots..."

But Frum's mistake is assuming that Perlstein doesn't have the actual facts on hand. How many stammers and concessions do you hear Frum make?

* corrected. Nixonland will be available on May 13th.