Maeve Higgins: What are US politicians doing about gun violence?

Esmeralda Bravo, 63, sheds tears while holding a photo of her granddaughter, Nevaeh, one of the Robb Elementary School shooting victims, during a prayer vigil in Uvalde, Texas, Wednesday, May 25, 2022. (AP Photo/Jae C. Hong)
On Tuesday, an 18-year-old shot his grandmother and then drove to Robb Elementary School in Uvalde, Texas.
He crashed his truck outside the school, went inside, and killed nineteen children and two adults.