Gov. Scott Walker says protesters at the Capitol should "follow the rules" and get permits.
Walker restated his position Wednesday as Capitol Police arrested a prominent union leader during the daily lunchtime singalong.
Wisconsin State Employees Union Executive Director Marty Beil was led away in handcuffs.
Protesters have been gathering in the rotunda almost every noon hour for more than two years to sing songs critical of Walker and his policies.
Walker says he doesn't care if people protest, but his opponents need to follow the same rules as others who gather in the Capitol.
The Milwaukee Journal Sentinel reports Walker spoke to journalists following a meeting with members of an economic development group in Milwaukee.