Obama: Benghazi Deaths "Not Optimal"

The president talked about the assault on Benghazi with Jon Stewart of the Daily Show

Republicans on Friday pounced on President Barack Obama after he said during a TV appearance that the deaths of four Americans in Benghazi, Libya, were not "optimal" -the latest instance of a candidate's choice of words becoming an issue on the campaign trail.

"Even from someone like the president, who has never known what these kinds of tragedies are about and the service and sacrifice that people make, it's still just — I can't even get angry," Sen. John McCain, the ranking member on the Senate Armed Services Committee, said Thursday night on Fox News's "On the Record with Greta Van Susteren."