Gun advocate allegedly punches Wisconsin union activist in the face

A daily non-violent singalong at the Wisconsin Capitol turned ugly Tuesday when it was interrupted by a former Republican state senator and two pro-gun advocates.

Former state Sen. David Zien yelled "Walker for president" while the two other men attempted to cover some of the union activists with the former senator's "Don't Tread On Me" flag, Sue Trace, who was participating in the singalong, told The Milwaukee Journal Sentinel.

Michael Dickman came over and tried to grab the flag. That's when Henry Rahr allegedly put him in a headlock and punched him in the face, chipping his tooth.

Rahr was arrested on the tentative charge of attempted battery. He was released after posting $650 bail.

Eugene German, the man holding the flag, was cited for disorderly conduct.

Zien, Rahr and German were among others there to support a bill allowing the carrying of concealed weapons.

Lisa Wells provided The Wisconsin State Journal with video of Zien using his wheelchair to disrupt the singers, but it did not appear to show the altercation.

Watch this video from Lisa Wells, recorded June 21, 2011.