Unions were formed for good reason, exploitation of employees. They were a critical part of balancing power of the companies that hired the workers and the workers themselves. As more and more industries were formed, competition for those same workers increased and the need for unions decreased as did the unions. Today, about 7% of all private sector jobs are unionized.
Government by definition doesn't need unions but today 43% of government employees are union, plus teachers. This is an oxymoron. The unions bosses were no longer needed in the private sector and moved to the public sector. Since then, they have become the largest donators to political races, both in money and time. They control a lot of the vote and it is almost all the democrat party as are the donations. Nov. 2, 2010 saw this up close, Ca, Co, Nv, Wa and WV senate races were all taken by the votes and fraud of the unions. Many house races and at least the governor of Mn was taken by the unions.
Congress needs to pass a law that makes government unions illegal. Why does the government need a union? Why do government employees have higher pay and bigger unfunded pension plans? The Unions have to Go!