Fifty senators have endorsed a legislative measure to override the Federal Communications Commission’s December decision to roll back net neutrality rules, top Democrats said Monday.

The resolution aims to overturn the FCC’s decision and prohibit the agency from passing similar measures in the future. It has the support of all 49 Democratic senators as well as one Republican, Sen. Susan Collins of Maine.

Democrats need just one GOP vote to reach the 51-vote threshold for a Senate resolution of disapproval, which would strike down the FCC’s December rules change.

The measure, if it passes the Senate, would still have to pass the GOP-held House and get President Trump’s signature to go into effect.

Lawmakers have a window of 60 days from the FCC’s December 14 decision to repeal the new regulations under the Congressional Review Act.