 But the cops did nothing and the gunman, 20-year-old Thomas Crooks, opened fire. He ultimately was killed by a Secret Service sharpshooter. Today, a House committee begins investigating what went wrong protecting Trump at that rally. The shooting prompted President Biden to take to the airwaves last night and ask that we all back off the verbal assaults on political opponents. I want to speak to you tonight about the need for us to lower the temperature in our politics and to remember