Liz Cheney Challenges Wyo. Republican Incumbent Enzi

Aired: 7/17/2013 | 0:06:39 | Clip
Liz Cheney, daughter of former Vice President Dick Cheney, announced her plans to challenge three-term incumbent Sen. Mike Enzi, R-Wyo., in the 2014 primary. Gwen Ifill talks to Jonathan Martin of The New York Times for more on the coming fight in the Cowboy State.