What is the fine-grained topic of the following text: This week, U.S. Rep. Mike Thompson, D-Calif., unveiled the “Bipartisan Background Checks Act of 2019” which has more than 150 cosponsors including U.S. Rep. Brian Mast, R-Fla. Other Republicans backing the proposal include U.S. Reps. Brian Fitzpatrick of Pennsylvania, Peter King of New York and Chris Smith of New Jersey. Only return the topic.
The Bipartisan Background Checks Act of 2019 introduced by U.S. Rep. Mike Thompson.