The disgusting ad making the rounds today has already blown up in the faces of Team Obama. The pro-Obama super PAC Priorities USA Action lobbed a heavy-duty attack at Mitt Romney this morning, airing an ad that links the closure of a GST Steel plant in Kansas City to the loss of a family’s health insurance — and the death of a woman some time later. The man speaking in the ad, Joe Soptic, says, “Mitt Romney and Bain closed the plant, I lost my health care and my family lost their health care. And a short time after that...