Indiana union membership dropped 20 percent from 2011 to 2012, but union leaders say right to work is not the cause.
A federal court says the challenge against the law was not an issue of constitutionality.
Republicans charged Democrats thousands of dollars each in fines for walking out of the House of Representatives in 2011.
WFIU/WTIU reviews the top 10 stories of 2012, including election upsets and a record-breaking drought.
Governor Mitch Daniels began his first term in 2005 and leaves office in early January.
A judge has ruled a suit filed by the United Steelworkers against Indiana's right-to-work law can continue.
Both sides will have to wait 30 days for the judge to make a decision.
Unions are still trying to convince the courts to strike down Indiana's right to work legislation, but the battle is difficult and, some say, futile.
Daniels says Right-to-work is one of the key achievements of Indiana's 2012 legislative session.
The General Assembly passes controversial bills on topics ranging from Right to Work to human trafficking.