Michigan has passed right-to-work laws which weaken the union monopoly on labor in that state. Michigan had little choice: it is the most unionized state in the midwest, and also the one with the highest unemployment. Yes, there is a correlation.
Now some asshat Democrat, Rep Doug Geiss has declared "there will be blood," implying that the new laws will result in union violence...against whom? Michigan politicians? Non-union workers?
Rep Geiss had better be careful, his prediction may come true in ways he does not foresee.