An unlikely figure has thrown his weight and his wallet behind an attack ad in the Pennsylvania governor's race: New York's mayor, Michael Bloomberg.
The billionaire mayor put up $500,000 to underwrite a gun-control group's 30-second commercial urging voters to reject Republican candidate Tom Corbett, and to aid the group's efforts in other Pennsylvania races.
The anti-Corbett spot, financed via Bloomberg's donation to CeaseFire PA, began airing Monday on network and cable television in Southeastern Pennsylvania. Corbett "would allow violent criminals to carry guns," the ad declares.
It depicts a mother whose infant was fatally wounded by a stray bullet from an illegal firearm, and challenges Corbett's stance on a controversial aspect of the state's weapons laws - what critics have labeled the Florida loophole.