Rep. Dingell, Longest-Serving House Member, Faces Challenge from Ph.D. Student

U.S. Rep. John Dingell (D-Mich.) has served in Congress since Dwight Eisenhower was president. He is the longest-serving member of Congress and, this year, he is running for his 30th term. But he is facing his first challenge from another Democrat since 2002. We talk with Daniel Marcin, a Ph.D. student at the University of Michigan, who is working to get on the ballot for the August 7th primary.