U.S. Senate Republican Whip John Barrasso of Wyoming wants to throw out electric vehicle regulations, but his planned to do that drew verbal fire from three Senate Democrats on Thursday.

U.S. Sens. Alex Padilla and Adam Schiff of California, plus U.S. Sen. Sheldon Whitehouse of Rhode Island, said Barrasso’s plan runs contrary to the Senate parliamentarian’s opinion on procedure. The parliamentarian is a referee-type officer in the Senate.

The trio of Democrats launched into the issue after Barrasso promised earlier Thursday that Republicans would vote to scrap the regulations by using a law called the Congressional Review Act, or CRA.

The Senate adjourned Thursday without voting on the matter and no word about when a vote might happen.

A spokeswoman for Barrasso did not deny the Democrats’ claim that the parliamentarian’s opinion goes their way.