Glenn, Being supported by the Unions isn't actually being supported by the union members. The Union LEADERS decide what political candidate they invest in. Many times they actually go AGAINST the will of the Union MEMBERS. This is the reason I would prefer not to have to be a part of the union to work someplace. If my politics disagree with the union leaders, I am not given the choice to leave the union.
Here in AZ we are seeing some of that. Many Phoenix police officers are leaving the Union because of the leaders support of 1070.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." Thomas Jefferson