It’s a brief in support of a lawsuit filed by the other states.

READ: Michigan AG asserts Lansing Capitol is unsafe as expected armed protest loomsThings were calm at the Capitol in Lansing Saturday night. Authorities installed six-foot barriers around the Capitol Building in preparation of armed protests Sunday. “I’m feeling much better regarding the events this weekend,” Nessel said. Michigan State Police troopers -- joined with members of the National Guard and Lansing police -- are ready for anything and everything. More: Michigan law enforcement on armed Capitol protests this weekend: ‘We will be prepared’

DETROIT – On Monday, the Michigan State Capitol Commission voted unanimously to ban the open carry of guns at the Lansing Capitol building. Details: Michigan commission votes to ban open carry of guns from Capitol buildingThat comes just days after the siege at the US Capitol and months since a group armed with assault rifles made its way inside the Michigan Capitol building. Democratic lawmakers had requested an outright ban of all guns from inside the Capitol building, including the concealed carry guns. The Michigan State Capitol Commission has not done enough to protect lawmakers, school kids, tour groups and others inside the state’s Capitol, House Democratic leaders said Monday. “The ban on open carry firearms is long overdue and it is my hope we see further action.”Read more