Editor's note: You can follow the latest in the Cindy Sheehan arrest story here.

This is from Sgt. Kimberly Schneider with the U.S. Capitol Police.

Cindy Sheehan was arrested in the gallery of the house floor tonight and charged with demonstrating in the Capitol--a misdemeanor. Sgt. Schneider says she was wearing a T-shirt with a slogan on it and was asked to cover it up. Sheehan did not cover it up and she was arrested. Capitol Police would not say what the slogan on the T-shirt said. She is being processed at Capitol Police HQ and is expected to be released at some point tonight. The misdemeanor charge carries one year in jail.