Whether trying to influence involvement in foreign wars, fight for social justice, or win an election, effective organizing is crucial. Here’s my 2012 conversation with MARSHALL GANZ, who dropped out of Harvard in 1964 to participate in Freedom Summer, worked for years as one of the lead organizers for United Farm Workers, and helped devise the grass-roots model for Obama’s 2008 campaign. Now a lecturer in public policy at Harvard, I can say without reservation, we need to learn from him. You can find more at marshallganz.com