You have probably heard of the famous “Daisy” ad for Lyndon Johnson in 1964 suggesting that his opponent, Barry Goldwater, might blow the world to bits if elected in a nuclear holocaust. But you may not know about this ad from the same year: linking Goldwater to the Ku Klux Klan. This actually got passing mention on Mad Men. And you think attack ads are a fairly recent phenomenon? But like the “Daisy” ad, this one was either not aired at all or pulled quickly. Also, don't miss: go here to see the very first attack ads on the screen--it may surprise you to learn that they were produced by Hollywood saint, Irving Thalberg, way back in 1934, to defeat the Democratic nominee for governor of California--none other than socialist author, Upton Sinclair!