Mike Allen; Leon Wieseltier, Pt. 2; Juliano Ribeiro Salgado

Politico's Mike Allen analyzes the news of Senator Ted Cruz's announcement that he'll seek the Republican nomination for president of the United States in 2016. Editor Leon Wieseltier explains and defends his decision to resign from New Republic magazine. Juliano Ribeiro Salgado discusses "The Salt of the Earth," a documentary about his father—the celebrated photographer Sebastiao Salgado—which he co-directed wtih Wim Wenders.