In his first term as governor, Gov. Scott Walker dealt one of the most significant blows to organized labor in recent American history. In few, if any, states are the collective bargaining rights of public-sector workers so limited, and in few places are the barriers to organizing a union in a public workplace so high as in Wisconsin, due to Walker?s signature legislation, known as Act 10. However, there is still much Republicans could do to further marginalize Wisconsin labor unions.