Take the "daisy ad." Perhaps the most infamous negative presidential ad of all time didn’t appear to move either Lyndon B. Johnson’s or Barry Goldwater’s poll numbers. And don’t be fooled by accounts suggesting that a negative ad had some subtle effect on a race — "changed the narrative" or another similarly squishy phrase.
The above photo making the rounds has a good chance of appearing in a negative ad. Brian Abrams captions: "Mitt Romney, chillin' with his populist pals at Bain Capital back in the day."
The Dish 