Obama's Compromising Stirs Talk of Dem Primary Challenge; Bernie Sanders Says It's a 'Good Idea'

With discontent among democrats and liberals mounting against President Obama and his abdication of the core principles that got him elected, Bernie Sanders argues that the President should face opposition in the primaries to get important grievances and issues out in the open. 
http://www.thenation.com/blog/162246/obamas-compromising-stirs-talk-dem-primary-challenge-bernie-sanders-says-its-good-idea