Sen. Fred Risser, D-Madison, began circulating a bill that would ban people from carrying guns at the state Capitol.
Risser's bill would prohibit anyone, other than on-duty law enforcement officers and armed forces members who carry guns in the line of duty, from carrying a firearm at the Capitol. Violators would face misdemeanor charges.
Wisconsin became the 49th state to allow people to carry concealed firearms in July 2011, when Republican Gov. Scott Walker signed the measure into law. The law took effect later that year.
The law allows people to carry guns at the state Capitol and other government-owned buildings. Guns remained banned from law enforcement offices, prisons, jails, courthouses, secure mental health facilities, and areas of airports beyond security checkpoints.