With Americans demanding increased action in the wake of multiple mass shootings, we explore a growing movement that challenges the gun lobby's tight grip on Congress. Joshua Horwitz, executive director of the Coalition to Stop Gun Violence, joins Saul Cornell, Second Amendment specialist and professor of American history at Fordham University, and Tom Diaz, author of The Last Gun: How Changes in the Gun Industry Are Killing Americans and What It Will Take to Stop It. Moderated by Ian Masters, journalist, documentary filmmaker and radio host. Hammer Forum is made possible by the Michael Asher Foundation and Bronya and Andrew Galef.