In the Belly of the Beast...a Protesters inside look at the BGR Group DC Fundraiser.

More on the Wisconsin GOP bust the union fundraiser.

Gather: Protesters crashed a big money fundraiser for Wisconsin Republicans in Washington, D.C. on Wednesday. 

Hundreds of protesters flooded into the offices of the lobbying firm BGR Group, where the fundraiser was scheduled to take place. A Salon videographer captured the dramatic scene on camera and has posted a video of the occupation on YouTube, which can be viewed below. 

Wisconsin Senate Majority Leader Scott Fitzgerald and Assembly Speaker Jeff Fitzgerald were among the GOP lawmakers slated to attend the $1,000 to $5,000 a head fundraiser.