Excerpt:  Behind the onslaught is a well-funded network of conservative think tanks that you've probably never heard of. Conceived by the same conservative ideologues who helped found the Heritage Foundation, the State Policy Network (SPN) is a little-known umbrella group with deep ties to the national conservative movement. Its mission is simple: to back a constellation of state-level think tanks loosely modeled after Heritage that promote free-market principles and rail against unions, regulation, and tax increases. By blasting out policy recommendations and shaping lawmakers' positions through briefings and private meetings, these think tanks cultivate cozy relationships with GOP politicians. And there's a long tradition of revolving door relationships between SPN staffers and state governments. While they bill themselves as independent think tanks, SPN's members frequently gather to swap ideas. “We're all comrades in arms,” the network's board chairman told the National Review in 2007.

Occasionally, SPN think tanks boast of their clout. Such was the case when the Tennessee Center for Policy Research bragged on its website recently that it “leads the charge against teachers' union” and “laid the groundwork” for the bills now in the Tennessee legislature to restrict, and possibly eradicate, bargaining for public school teachers. More often, though, the fingerprints of SPN's members are less apparent.

Founded in 1992 by businessman and Reagan administration insider Thomas Roe—who also served on the Heritage Foundation's board of trustees for two decades—the group has grown to include 59 “freedom centers,” or affiliated think tanks, in all 50 states. SPN's board includes officials from Heritage and right-wing charities such as the Adolph Coors and Jacqueline Hume foundations. Likewise, its deep-pocketed donors include all the usual heavy-hitting conservative benefactors: the Ruth and Lovett Peters Foundation, which funds the Cato Institute and Heritage; the Castle Rock Foundation, a charity started with money from the conservative Coors Foundation; and the Bradley Foundation, a $540 million charity devoted to funding conservative causes. SPN uses their contributions to dole out annual grants to member groups, ranging from a few thousand dollars to $260,000, according to 2009 records.

According to SPN's website, Roe launched the conservative network “at the urging” of President Reagan himself as a way to shape state-level policy just as Heritage has influenced federal policy. Surveying the political landscape today, Roe's and Reagan's idea couldn't have been more prescient. More than a dozen states are currently considering legislation weakening the clout of organized labor. In many of those states, SPN think tanks have been pushing for similar prescriptions for years via “research” papers, policy recommendations, and talking points that are widely distributed to lawmakers.