A Senate bill that would stop the Federal Communications Commission’s effort to repeal net neutrality has won its first Republican backer on Tuesday, with Sen. Susan Collins Susan Margaret CollinsSenate Republicans face tough decision on replacing Ginsburg Democratic senator calls for eliminating filibuster, expanding Supreme Court if GOP fills vacancy What Senate Republicans have said about election-year Supreme Court vacancies MORE (R-Maine) throwing her support behind the effort.

“Senator Collins does not support the FCC’s recent decision to repeal net neutrality rules, and she will support Senator Markey’s legislation that would overturn the FCC’s vote,” a spokeswoman, Annie Clark, said in a statement to The Hill.

“She believes that a careful, deliberative process involving experts and the public is warranted to ensure that consumers have strong protections that guarantee consumer choice, free markets and continued growth.”

The move was first reported by the Bangor Daily News.

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Democrats have promised to use the CRA’s procedural mechanisms to force a vote on Markey’s bill, putting the heat on Republicans during a midterm election cycle.

Assuming all Democrats are on board with the legislation, they will still need one more Republican in order for it to pass the Senate. And even if that happens, the bill would have another uphill battle in the House.