Midterm political ads get more positive spin

Aired: 5/1/2014 | 0:09:43 | Clip
As 2014 midterm election kicks off, there are 20 percent more positive political TV ads than during the cycle two years ago. To understand the slight shift away from mudslinging, Judy Woodruff talks with ad-maker and consultant John Brabender and John Geer of Vanderbilt University.