Read the Guardian article on John Doe. READ IT ALL! And pass it along to your buddies.
I'll say more as things develop here, but here are a couple of my favorite passages from the John Doe docs.
First of all, if Club for Growth is an "independent social welfare organization," then why does Walker say in August 2011 "did I send out thank you notes to our  c4 donors? (emphasis added). "OUR" 501 c-4? Hmmmm....
Oh, and if you needed more proof that Walker was a main part of this laundering operation, take a look at the second check down, which was written to Wisconsin Club for Growth, with a nice memo line of "Because Scott Walker asked."
Yeah, I think SCOTUS might have to do a little overrule here and open John Doe back up. Unless Kennedy was lying in Citizens United when he said
With the advent of the Internet, prompt disclosure of expenditures can provide shareholders and citizens with the information needed to hold corporations and elected officials accountable for their positions and supporters
- Justice Anthony Kennedy
But when a fake charity like Wisconsin Club for Growth is used to hide those donors, like Walker and WisGOP did in John Doe, then that idea blows up. And with Kennedy expressing concerns over loopholes that are preventing disclosure and eliminating the wall of separation that is supposed to exist between "independent" organizations and political candidates, there's no better case than John Doe that can be used to start to build that wall back up, and give citizens the right to know.
And once John Doe's re-opened, then DROP THE BOMB on all involved for tax fraud, money-laundering and excessive campaign contributions.