Dem Senate candidate Jim Pederson -- who's trailing GOP incumbent Jon Kyl by ten points in a new poll -- has just launched his first TV attack ad against Kyl, a statewide buy hammering Kyl as a shill for special interests and spotlighting Kyl's ties to Big Oil and his reliably pro-Bush voting record. The ad, called "Changed," features a photo of a smirking Bush and intones: "Big oil has showered Senator Kyl with big money, and he has returned the favor." To watch the ad, click here.