Security has been increased at the Wisconsin Capitol this week in response to politically driven shootings in Minnesota over the weekend.
Assembly Speaker Robin Vos requested the added precautions as lawmakers prepare to convene on Tuesday.
Authorities say documents discovered in the car of suspected gunman Vance Boelter listed the names of about a dozen Democratic officials from Wisconsin.
Boelter is in custody, accused of killing Minnesota State Representative Melissa Hortman and her husband, as well as seriously injuring State Senator John Hoffman and his wife.
