Lawmakers grilled on guns at town halls

The issue of gun violence is front and center for members of congress during this august recess, as House and Senate members from both parties are questioned at town halls about how they will respond to mass shootings. Fred Guttenberg is a national advocate for tougher gun laws, whose fourteen year old daughter Jaime was one of the victims at the Parkland Florida high school shooting last year. He joins Andrea Mitchell to discuss.