Bernie Sanders, powered by diverse liberal coalition, forces a reckoning for Democrats

Bernie Sanders has seized a commanding position in the Democratic presidential race, building a diverse coalition that is driving his liberal movement toward the cusp of a takeover of a major political party. …

The Sanders insurgency is the culmination of grievances that have simmered for the past decade among liberals who say Washington has all but ignored the problems of income inequality, health-care access and climate change. CONT.

Robert Costa & Philip Rucker, Washington Post