Bill Moyers criticized both political parties on Friday for furthering the “protection racket” built to protect the mega-rich from paying their fair share of taxes while extending their influence over politics.

“Sad that it’s come to this,” Moyers said. “The drift toward oligarchy that Thomas Pinckeney described in his formidable book has become a mad dash, and it will overrun us and overwhelm us unless we stop it.”

Moyers pointed out that many members of the “one percent” pay less taxes than the average worker across the board, thanks to tax laws that were drawn up not by nature or divine providence, but by legislators.

“It’s one way they have, as Chief Justice [John] Roberts put it, of ‘expressing gratitude toward their chief donors,’” Moyers said, before launching into a mocking impersonation of Republican lawmakers doing so for billionaire donor Sheldon Adelson. “‘Oh, Mister Adelson, we so appreciate your generosity that we cut your estate taxes so that you can give $8 billion as a tax repayment to your heirs, even though, down the road, the public will have to put up $2.8 billion just to compensate for the loss in tax revenue.”