From one of America's best columnists writing today:
Frank Zeidler, Milwaukee's mayor in the 1950s and the last card-carrying Socialist to head a major U.S. city, supported labor. But in 1969, the progressive icon wrote that rise of unions in government work put a competing power in charge of public business next to elected officials. Government unions "can mean considerable loss of control over the budget, and hence over tax rates," he warned.
There was "a revolutionary principle rather quietly at work in American government," he wrote.
The principle was working at about 100 decibels in Wisconsin's Capitol last week, once the union drum-beaters got going. What worked them up was the money they'd concede, they said, but even more that Walker would make their unions surrender the control they'd gained over every government budget.
There is much more at this link.