A standard 30-second television commercial may be a minor inconvenience when watching your favorite show, but when it comes to presidential politics, it can tell you a lot about a candidate.
Melissa Block runs through some of the latest Democratic presidential campaign ads with Ken Goldstein, professor of political science at the University of Wisconsin in Madison and director of the Wisconsin Advertising Project.
9(MDAxODEwNTYyMDEyNTM4NDM3NDE1NWI3Yw001))