Congressional Republicans got exactly what they wanted when the FCC repealed net neutrality on Thursday: a regulatory rollback that didn’t require them to cast a vote in favor of a reform that 75 percent of Republican voters don’t like.

But the GOP isn’t out of the woods yet. Advocacy groups and multiple state attorneys general are planning to sue the FCC, and Massachusetts Democrat Sen. Ed Markey introduced a resolution on Friday that could force Republicans to get on the record about whether they support net neutrality or not. Markey’s maneuver is what’s called a Congressional Review Act (CRA) resolution, which allows Congress to undo the decisions of federal agencies within 60 days of their implementation.

Markey has 20 Democratic co-sponsors signed onto the bill, including Senate Minority Leader Chuck Schumer, and Pennsylvania Democrat Mike Doyle introduced a companion measure in the House. For Markey to get his resolution on net neutrality onto the Senate floor for a vote, he only needs 30 supporting votes lined up; the actual Senate and House votes on the resolution will likely happen in February or early March.

This will present a major dilemma for Republicans, because 73 percent of their own voters supported the Obama-era net neutrality reforms that prevented telecoms from throttling connection speeds or otherwise limiting how consumers get to use the internet. FCC chairman Ajit Pai, a Trump appointee, and other Republicans argue that the rules slowed down broadband infrastructure investment, an assertion contested by pretty much everyone else.

If forced to vote, however, the GOP will likely fall in line behind Trump (who has veto power) and Pai, and the resolution will likely bring back painful memories of a similar vote from this past spring.