Mark Halperin has a major sad about the pro-Obama SuperPac ad featuring the guy whose wife was killed by Mitt Romney’s corporate policies:

This new super PAC spot, called “Understands,” which the White House and the Obama campaign decline to repudiate, is a horse of a different color. It really isn’t about policy (although some Democrats will claim otherwise). It is meant to use the emotion of a tragic story told by a bereaved widower to make voters think Governor Romney is callous and indifferent, and even is accountable for a woman’s death.

Responsible journalists will continue to do their best in the Freak Show environment to truth squad every ad, video, and communication. But when lines of decency are crossed, more strenuous efforts are required.