Government unions were allowed by an executive order.
They can be rescinded by another executive order from another president.
http://en.wikipedia.org/wiki/Executive_Order_10988
It needs to happen.
“Stroke of the pen. Law of the land. Kinda cool.” —Clinton presidential aide Paul Begala, July, 1998
President Kennedy’s Executive Order 10998, allowing Federal unions, is what opened the door for public sector unions at the state and local level, which is leading to bankruptcy from bloated public sector salaries, benefits, and retirement plans. Businesses that offered plans like many governments have would go bankrupt. Gubmint entities will, too, eventually, but it will be much more painful.
This is why unions should again be outlawed for public employees.
As legendary New York teachers union leader Albert Shanker said, “When school children start paying union dues, that’s when I’ll start representing the interests of school children.”