Here in New Hampshire, Romney has endorsed efforts to pass so-called “right-to-work” legislation, which would impose legal barriers to traditional methods for collecting union dues and providing representation for all employees at a workplace. Gingrich is an enthusiastic proponent of right-to-work laws. Even the most moderate of the GOP contenders, former Utah Gov. Jon Huntsman, is urging New Hampshire voters to gain a “competitive advantage over your neighbors” by passing anti-union legislation.

But the Republicans don’t stop there.

Gingrich says: “One of the things the Congress should do immediately is defund the National Labor Relations Board.” Not to be outdone, Romney is airing a new ad in South Carolina that declares: “The National Labor Relations Board (is) now stacked with union stooges selected by the president.”

Santorum, who has tried to present himself as an ally of working Americans with talk of renewing our manufacturing base, is as militant as Walker when it comes to attacking the collective bargaining rights of public employees. “I do not believe that state, federal or local workers … should be involved in unions,” says Santorum. “I would actually support a bill that says that we should not have public-employee unions for the purposes of wages and benefits to be negotiated.”