A video taken at a Wisconsin event on behalf of Mitt Romney shows a protester arguing with a Romney supporter and then spitting in her face.
The event Friday in Grand Chute was part of a statewide "Wisconsin Women for Mitt" tour.
A protester interrupted Republican state Sen. Alberta Darling to ask about Republican opposition to Planned Parenthood.
A woman standing next to the protester chides her in a loud voice to "wait until she's done. Zip it. Zip it." The protester tells the woman to get out of her face, and then spits on her.
A Post-Crescent of Appleton report identifies the protester as an 83-year-old Appleton woman. She says she was scratched on the neck.
Grand Chute police are reviewing the incident.