A new, liberal tea party is forming. Can it last without turning against Democrats?

Grass-roots movements can be the life and death of political leaders. It’s a well-worn story now about how John A. Boehner, then House minority leader, joined a rising star in his caucus, Rep. Kevin McCarthy, in April 2009 for one of the first major tea party protests in the California Republican’s home town of Bakersfield. --More...