American Crossroads defends Romney in swing states

The pro-Mitt Romney group, American Crossroads, is up with a new spot (and plenty of financial muscle behind it), defending Mitt Romney from Obama's outsourcing attacks.

Crossroads is pumping $9.3 million into the ad, which is running in the swing states of Florida, Virginia, Colorado, Iowa, Michigan, North Carolina, New Hampshire, Nevada, Ohio, and Virginia.

The ad cites The Washington Post, FactCheck.org, and Ed Rendell's criticisms of the Obama attacks, and then pivots to numbers on the struggling economy.

And note -- the ad is running in Michigan. That's more proof that Republicans are poking around for real signs of Obama's weakness in the state.