A couple days ago, the Miami Herald wrote that Todd Akin's "legitimate rape" comment "could be bad news for Florida Sen. Bill Nelson," because big-spending outside groups that were on the fence about this race might change their minds if Missouri fell off the map. Rep. Connie Mack (R) has stumbled a bit, but he's never said anything about "legitimate rape." And it's still a competitive race.

That looks pretty prescient now. As first reported by Politico, the Karl Rove-advised non-profit Crossroads GPS is going up with its first ad in Florida, part of a $4.2 million Senate offensive. Of that, $2.4 million is going to Florida. (Ads are also going up in Montana, New Mexico and Ohio.)