JEFFERSON CITY â A vote on a highly anticipated gun bill in the Missouri Senate turned into a wider debate on domestic violence and the Republican majority's priorities Thursday, with Senate Democrats engaging in a lengthy filibuster before the bill ultimately passed. The Republican-backed House Bill 85, which now returns to the House for final approval, would establish the Second Amendment Preservation Act, or SAPA, and effectively nullify federal gun laws in the state. The legislation would declare any federal law deemed to "restrict or prohibit ⦠the manufacture, ownership and use of firearms, firearm accessories or ammunition" in Missouri as beyond the authority granted to the federal government. It would also prohibit state law enforcement from working with federal authorities to enforce such laws and allow for fines of police departments whose officers enforce those laws.