They hosted a video stream of a candidate forum with senate candidates from Pennsylvania. Arlen Specter was there. He talked (too long I guess - the moderator cut him off and said this wasn't the Senate so there wouldn't be any filibusters
I noticed more people in staff tshirts than this morning or yesterday. And someone in the audience with a tag that said security. Maybe because of the griefer earlier today, maybe not. Anyway - some more pictures.