Details sketchy...

TFP: Protesters march on state Capitol, bang on doors

TFP: Protesters dragged from Senate hearing

UPDATE: NewsChannel5.com:

Seven union supporters were arrested and charged with disorderly conduct and resisting arrest following an outburst inside a Senate Committee Hearing.

UPDATE: WKRN:

The activists, members of the American Federal of State, County and Municipal Employees, were at the capitol to see the commerce committee vote on a bill that makes changes to political contributions from labor unions.

They became irate and began to chant when it became apparent the bill wasn't going to be heard.

UPDATE: Statement from Lt. Gov. Ron Ramsey's office:

The right of all citizens to protest and assemble peacefully is sacred in the State of Tennessee. However, this General Assembly will not be intimidated by nomadic bands of professional agitators on spring break bent on disruption. We talk through our differences here. Tennessee is not Wisconsin.