Bernie Sanders' Brutal Letter On Obama's Trade Pact Foreshadows 2016 Democratic Clash

WASHINGTON -- Progressive unrest over free trade policies is shaping up to be a major issue in the contest for the 2016 Democratic presidential nomination, if a strongly worded letter from Sen. Bernie Sanders (I-Vt.) to the top Obama administration trade official is any sign. Sanders has been considering a presidential run for months. Like Sen. Elizabeth Warren (D-Mass.), another progressive favorite often mentioned as a potential 2016 contender, Sanders has been critical of the Trans-Pacific Pa...