“The two preceding chairs of this committee violated the letter and spirit of Committee Rule IV,” he said, referring to a committee rule that requires at least one member of the minority to vote with the majority to end debate on a matter before moving to vote on it.

Durbin said one former chair, Chuck Grassley (R-Iowa), violated this rule with a vote on Brett Kavanaugh’s Supreme Court nomination, and Graham was chair when he broke the rule to advance a partisan immigration bill without Democratic input.

“In doing so, Republicans established a new precedent that I followed on one occasion last Congress and will follow again today,” said the Illinois Democrat. “I’ve said time and again there cannot be one set of rules for Republicans and a different set for Democrats.”

The best remedy is a consistent set of rules, but once a precedent is established, that’s basically the new rule until proven otherwise.