Did the U.S. spy on Israel amid Iran deal lobbying?

Aired: 12/30/2015 | 0:05:40 | Clip
The rift between the U.S. and Israel over the Iran deal was no secret, but according to The Wall Street Journal, that dispute was fed by high stakes political espionage by both countries and ensnared members of Congress. Adam Entous of The Wall Street Journal discusses the story with Gwen Ifill.