CNN's Dr. Sanjay Gupta and John King discuss how government budget cuts affect public health, including bio-terrorist attacks.
Presidential candidate Rick Santorum receives a key endorsement from evangelical leaders in Iowa.
GOP Presidential candidate Ron Paul talks with John King about his rising poll numbers and whether he'd ever run as an independent.
John King interviews GOP Presidential candidate Congressman Ron Paul of Texas today. Do you have any questions we should ask him? Send your questions on Twitter to @JohnKingCNN or @JohnKingUSA.