2016 hopefuls aim to prove their worth in campaign warm up

Aired: 1/14/2015 | 0:08:38 | Clip
From launching book tours to hiring staff to meeting with top donors, several potential presidential candidates have started taking steps in the long race to the White House. Gwen Ifill looks at the campaign landscape with Amy Walter of The Cook Political Report and the Washington Post’s Nia-Malika Henderson.