From The New Yorker:
Bernie Sanders has spent decades attacking inequality. Now the country is listening. … As Michael Tesler, a political scientist at the University of California, Irvine, recently noted in The Washington Post, Obama enjoyed much higher favorability ratings among black Democrats than Sanders does now.

For the full story, please visit http://www.newyorker.com/magazine/2015/10/12/the-populist-prophet?mbid=rss.