It was a week of whiplash in the national fight over gun control. First, major retailers like Dick’s and Walmart raised the gun-buying age from 18 to 21, and companies like Delta dropped their NRA discounts. But then pro-gun rights legislatures pushed back. Vox’s German Lopez walks Sean Rameswaram through the many debates. He says the reason the country is stalled is because we haven’t begun to have the right conversation about guns. Sean and Vox’s Dylan Matthews talk about the elephant in the room.