Missouri Senator Claire McCaskill, a Democrat, on Monday became the 30th co-sponsor of a bill that would overturn the FCC’s recent decision to repeal “net neutrality.”

By hitting that number, the bill is guaranteed to get a vote in the Senate.

“30 is the magic number of cosponsors needed to get a  vote in the full Senate,” McCaskill tweeted.

“Proud to be that 30th cosponsor of @SenMarkey bill to restore free and open internet.”

Another 10 joined the list as of Tuesday afternoon – all Democrats and Independents.

The list: EdMarkey (D-Mass.), Chuck Schumer (D-N.Y.), Ron Wyden (D-Ore.), Maria Cantwell (D-Wash.), Brian Schatz (D-Hawaii.), Richard Blumenthal (D–Conn.), Sheldon Whitehouse (D-R.I.), Jeff Merkley (D-Ore.), Kirsten Gillibrand (D-N.Y.), Tammy Baldwin (D-Wis.), Martin Heinrich (D-N.M.), Maggie Hassan (D-N.H.), Amy Klobuchar (D-Minn.), Gary Peters (D-Mich.), Debbie Stabenow (D-Mich.), Patrick Leahy (D-Vt.), Bernie Sanders (I-Vt.), Sherrod Brown (D-O.H.), Jack Reed (D-R.I.), Tim Kaine (D-Va.), Elizabeth Warren (D-Mass.), Dick Durbin (D-Ill.), Michael Bennet (D-Colo.), Jeanne Shaheen (D-N.H.), Chris Van Hollen (D-Md.), Ben Cardin (D-Md.), Mazie Hirono (D-Hawaii), Tammy Duckworth (D-Ill.), Kamala Harris (D-Calif.), Claire McCaskill (D-Mo.), Tom Udall (D-N.M.), Cory Booker (D-N.J.), Bob Casey (Pa.), Catherine Cortez Masto (D-Nev.), Bob Menendez (D-N.J.), Patty Murray (D-Wash.), Tina Smith (D-Minn.), Jon Tester (D-Mont.), Angus King (I-Maine) and Bill Nelson (D-Fla.).

Advocates of net neutrality have lobbied furiously to get the FCC decision made in December overruled.

“Internet users are angry, educated, and organized. We refuse to back down. Net neutrality is too important to the future of our democracy. Today’s news shows that lawmakers from both parties cannot hide from their constituents on this issue. Every member of the U.S. Senate will have to go on the record, during a tight election year, and either vote to save the Internet or rubber stamp its death warrant,” said Evan Greer, campaign director of Fight for the Future.

However, getting a vote doesn’t mean passage.

“Thirty cosponsors is a long way from the majority needed to pass a repeal,” notes news website Engadget. “All this does is ensure that [Sen. Ed] Markey and the other cosponsors can force a vote. Mustering up the votes to pass the bill is a different story altogether.”