Newt Gingrich just released his first Iowa television ad, a few days after Rick Perry, Mitt Romney and Ron Paul did so. (Some SuperPACs have been running ads longer, but these are from the campaigns.) Very different themes, with Newt keeping it in a “Morning in America” style (the background music is fromt he movie Rudy), Perry clearly focusing on religious voters, Romney touting business experience, and Paul poking Washington in the eye.