On Fox News today Chris Stirewalt wrote an article that basically said out loud what everyone already knew. Dems can never survive without Unions and primarily PEU's. Why? Because as the article says its a vicious cycle:
The cycle for five decades has been that unions support the campaigns of Democrats who promise to expand the power of unions. Thus empowered, the unions have more money with which to elect more Democrats who further expand union powers. And so it goes.