Brooks and Dionne on GOP debate brawls

Aired: 1/29/2016 | 0:12:27 | Clip
New York Times columnist David Brooks and Washington Post columnist E.J. Dionne join Hari Sreenivasan to discuss the week’s news, including the last Republican debate before Iowa and whether it hurt or helped Donald Trump to sit it out, the tight race between Democrats Sen. Bernie Sanders and Hillary Clinton and how much the caucuses actually matter.