The Senate Judiciary Committee held a hearing Wednesday on the proposal for reinstating the military assault weapons ban. In the hearing’s most testy exchange, Wisconsin Police Chief Ed Flynn sparred with Republican Sen. Lindsey Graham on whether the ban would reduce killings.

Ed Flynn: “From my point of view, Senator, the purpose of the background check” —

Sen. Lindsey Graham: “How many cases have you made? How many cases have” —

Ed Flynn: “You know what? It doesn’t matter. It’s a paper thing. I want to stop” —

Sen. Lindsey Graham: “Well” —

Ed Flynn: “I want to stop 76” —

Sen. Lindsey Graham: “Can I ask the question? Wait, wait.”

Ed Flynn: “I want to finish the answer.”

Sen. Lindsey Graham: “Well, no. I’m asking” —

Ed Flynn: “I want to stop 76,000 people from buying guns illegally. That’s what a background check does.”

Sen. Lindsey Graham: “How many AR-15s are legally owned in this country?”

Ed Flynn: “If you think we’re going to do paperwork prosecutions, you’re wrong.”