Multi-state efforts to reverse last month’s FCC decision to repeal net neutrality have been formalized today with a court filing.

Led by New York’s Attorney General, Eric Schneiderman, the lawsuit includes 22 states. Schneiderman made announcements about the lawsuit via Twitter and elsewhere.

As noted by The Verge, this is the first major attempt to reverse the FCC’s decision (outside of a Senate CRA). Specifically, the court filing will ask the DC circuit court if the repeal was an abuse of discretion and more.

Last week, Senator Markey achieved his goal of gaining 30 co-sponsors for his Congressional Review Act, which will force the Senate to vote on repealing the repeal. However, even though the Senate may overturn the decision, the vote is expected to fail if it makes it to the House and also wouldn’t be supported by President Trump.

For Scheiderman’s part, he is asking for public support by calling local representatives and officials, along with sharing his tweet/video.

#BREAKING: I’m leading 22 AGs and filing suit today to stop the @FCC’s illegal rollback of #netneutrality.

We can’t stand by and watch one of the greatest tools for democracy ever created be turned into a private playground for the rich and powerful. https://t.co/BUXSVVVMcs pic.twitter.com/xDTbE1uIrM

— Eric Schneiderman (@AGSchneiderman) January 16, 2018