The Obama campaign are distancing themselves from the super PAC ad that links Presidential Candidate Mitt Romney to the cancer-related death of a former steelworker's wife.
CNN has fact checked the ad and found it to be false.
Priorities USA is the super PAC that paid for the ad. Super PACs are not allowed to coordinate with campaigns and the head of Priorities USA, Bill Burton also denies any coordination with the Obama campaign.
But can the president hide behind campaign finance laws when a super PAC produces an ad that is both negative and false.
OutFront tonight: CNN Contributor John Avlon, Reihan Salam and Democratic Strategist Jamal Simmons.