Jonathan Burdick, a history teacher in Pennsylvania, wrote on Twitter about a new group called “Free to Teach,” which encourages teachers to abandon their union and form an “independent” union.

He can be found @JonathanBurdick on Twitter. In case you are not on Twitter and can’t find the thread, Jonathan writes that the group’s ads are sponsored by an Oklahoma-based organization called “Americans for Fair Treatment.” Here we go down the rabbit hole of right-wing groups. That group shares the same registered address in Oklahoma with “The Fairness Center,” which sued the teachers’ union in Philadelphia and lost. The Fairness Center shares offices in Harrisburg, Pennsylvania, with the Commonwealth Foundation. The Commonwealth Foundation is funded by DonorsTrust and Donors Capital Fund. These organizations are part of a massive network of right-wing groups called the State Policy Network. These organizations have donated HUNDREDS OF MILLION OF DOLLARS to extreme right causes: many anti-union and pro-educational privatization. These organizations are funded by billionaires including the Koch Brothers and Richard and Helen DeVos—the parents-in-law of Betsy DeVos. They also fund the Mackinac Center in Michigan, a favorite cause of Betsy DeVos, which works to crush unions and workers’ rights. Jonathan Burdick points out that Peter Greene wrote about “Free to Teach” and its connections to the right-wing oligarchs.