Vice President Debate

Last month's deadly attack in Libya has become the focus of the presidential campaign today.

At odds early and often, Joe Biden and Republican Paul Ryan squabbled over the economy, taxes, Medicare and more Thursday night in a contentious, interruption-filled debate.

Anyone who paid attention to a hearing in Congress this week knew that the administration had been implored to beef up security at the U.S. Consulate in Libya before the deadly terrorist attack there. But in the vice presidential debate Thursday night, Joe Biden seemed unaware.

ABC's Martha Raddatz took a forceful approach to moderating the vice presidential debate on Thursday, winning many positive reviews from instant pundits on social media but some complaints from Republicans.