Shields and Brooks on Obama’s year-end assessment

Aired: 12/18/2015 | 0:12:54 | Clip
Syndicated columnist Mark Shields and New York Times columnist David Brooks join Judy Woodruff to discuss the week’s news, including President Obama’s year-end news conference, how presidential candidates of both parties are fielding issues of national security and the breach of a DNC voter database by the Bernie Sanders campaign.