CBS Radio News reports she unfolded an anti-war banner, which is against House rules, when police acted.
Woolsey had offered Sheehan a ticket to the speech as Sheehan attended an "alternative state of the union" press conference by CODEPINK, a group promoting the end of the Iraq war.
Brit prefaced the arrival of W by mentioning her arrest and stating that she had taken part in some pre-speech protests . . . litely attended!