U.S. Rep. Bobby Rush (D-Ill.) and U.S. Sen. Cory Booker (D-N.J.) introduced bill
Former Md. governor appeared on CNN's 'State of the Union' on Sunday
U.S. Rep. Gregory Steube (R-Fla.) introduced HR 734
House Rules Committee moves for floor consideration of federal ban next week
Public comment period to come
House Ethics Committee investigating embattled N.Y. congressman
Former commander-in-chief is first former president indicted
U.S. Rep. Robert Garcia (D-Calif.) among measure's sponsors
Rep. Frost calls on Biden to speak out against wave of legislative attacks
26-year-old congressman has been a gun violence prevention advocate since 2012
