"Unions realize that this is a threat to their very existence," says Matt Rothschild, editor of The Progressive, of Scott Walker's attempt to strip collective bargaining rights from public workers. And some of the usual suspects are behind Walker's attack--from the Koch brothers to Republican ideologues. "These corporations want to get these people off the playing field," says John Nichols, of The Nation.

John and Matt join Laura in the studio at WORT, Wisconsin community radio, in Madison, Wisconsin for a special broadcast from the site of the historic labor protests.