Regarding the post below - yeah, cops were on the scene to make arrests, but law enforcement failed to secure the property in the first place. There's no way a gang of protesters should have been able to get into a legislative committee room.
Imagine if a bunch of protesters massed outside a county courthouse, and after a while a large group decided to enter the courthouse as a group. You think the sheriff's department officers guarding the place would allow it? Don't you think they'd perceive the act as an immediate threat to the peace? Court house entryways are narrow - it doesn't take many officers to block entry. Shouldn't legislative offices be equally secure?