II 116th CONGRESS 2d Session S. 3254 IN THE SENATE OF THE UNITED STATES February 5, 2020 Ms. Warren (for herself, Mr. Markey , Mr. Menendez , and Mr. Booker ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To end the epidemic of gun violence and build safer communities by strengthening Federal firearms laws and supporting gun violence research, intervention, and prevention initiatives.