Is this one of the things that happened back during the Wisconsin Legislature thing where they ended the mandatory union membership for public employees and the protesters were occupying the capitol and threatening the families of legislators?
No, this just happened. Walker attempted to attach a repeal of the Open Records Laws that have been law in Wisconsin for over a hundred years as part of the budget deal he just signed. He did this just days before his announcement for President.
This is the same thing that Slick Willie did in Arkansas just before he ran for President. Not something one does unless there is a lot to hide.