Public Knowledge, Mozilla, the Benton Foundation, INCOMPAS and others challenging the FCC's Restoring Internet Freedom order say that was not just bad policy but illegal.

That is coming in a brief with the U.S. Court of Appeals for the D.C. Circuit, which is hearing their challenge to the network neutrality reg rollback--the deadline for initial briefs from non-government parties is Aug. 20. The brief has yet to be made public, but Public Knowledge outlined the highlights.

That group and the others have long argued the FCC was making bad policy decisions when the Republican majority last fall voted to repeal the rules against blocking, throttling and paid prioritization and the title II common carrier regime that underpinned them.