CBS Senior Political Correspondent, Jeff Greenfield, answers how Stephen can appeal to South Carolina residents as both a Republican and Democratic presidential candidate. (3:57)
Author Bob Drogin explains how poor information from a taxi driver named Curveball has led to the worst intelligence and foreign policy failure in America's history. (5:10)
We've heard about immigration, health care, and who can say "9/11" five times fast with crackers in his mouth, but no candidate has given a job description of the presidency. (5:00)