Clearly I'm trying to make up for a post drought from the past couple of months. I'll leave the more in-depth commentary to someone who has been following this situation more closely, but it looks like the Wisconsin State Government is experiencing a wheeeeee-bit of a principal-agent problem (via Boing Boing).
Wisconsin Police Have Joined Protest Inside State Capitol
I will say that it's not immediately clear to me whether we're talking about off-duty cops only, or if we're talking about both on and off-duty police officers. If the latter are protesting that would seem to be less of a problem, but the article seems to indicate that on-duty officers are the ones refusing to remove protestors from the capitol. On the other hand, the man in the video looks more to be an off-duty officer expressing support (if his jacket is any indication).

Michael Flynn is a professor in the Department of Political Science at Kansas State University. He received his Ph.D. in Political Science from Binghamton University in 2013. His research focuses on the political economy of foreign policy with a specific focus on security cooperation and military deployments.