Senate lawmakers are expected to vote Wednesday on a resolution that aims to undo a sweeping act of deregulation undertaken last year by the Federal Communications Commission — and issue a rebuke to the Trump administration, which supported the FCC's move.  

The resolution targets the FCC's vote in December to repeal its net neutrality rules for Internet providers. If successful, the legislative gambit could restore the agency's regulations and hand a victory to tech companies, activists and consumer advocacy groups.  

The congressional effort comes less than a month before the rules are officially expected to expire, on June 11. And the high-profile vote could shine a spotlight on lawmakers running for reelection during a tough midterm campaign season.

Senate supporters of the FCC rules have put forward the legislation under the Congressional Review Act, a law that permits Congress to revisit — and reject — decisions by administrative agencies within a certain window of their approval. The resolution, or CRA for short, already has the backing of all 49 Democratic senators and one Republican, Sen. Susan Collins of Maine — enough votes that analysts widely expect the measure to pass the Senate on Wednesday.