Watch this. Republicans invited John Lott, a discredited "researcher" and pro-gun propagandist, to be a witness for today's hearing on gun violence. It didn't go the way they planned. Senator @MartinHeinrich did his homework and asked Lott a simple question: "Who is Mary Rosh?"

Watch this.

Republicans invited John Lott, a discredited "researcher" and pro-gun propagandist, to be a witness for today's hearing on gun violence. It didn't go the way they planned.

Senator @MartinHeinrich did his homework and asked Lott a simple question: "Who is Mary Rosh?" pic.twitter.com/lUgJ0R3MyD

— Aaron Fritschner (@Fritschner) September 18, 2019