Scott Walker is just too pro-labor unfortunately the vast majority of his laborers don't realize it.

http://www.weeklystandard.com/blogs/excerpts-scott-walker-s-address_626586.html

Simple: the big government union bosses from Washington want their money. They don’t like the fact that I did something fundamentally pro-worker; something that’s truly about freedom. I gave every one of the nearly 300,000 hard-working public servants in my state the right to choose. Now, each of them gets to determine whether they want to be in a union or not; and the unions can no longer automatically deduct dues from their paycheck. … The big government union bosses are worried that workers may actually choose to keep the money for themselves. That’s why the big government union bosses spent tens of millions last summer to try and win the six state senate recall elections in Wisconsin. In fact, the total amount spent by all parties was over $40 million.