Romney “made a strong pitch” for witnesses during a closed-door lunch of Senate Republicans on Monday, according to Republicans familiar with the meeting. Meanwhile, Senate Majority Leader Mitch McConnell (R-Ky.) urged his colleagues to wait until after Trump’s defense team finishes its presentation and senators go through a lengthy question-and-answer session to make a decision on what’s become the biggest issue of the trial.

But Romney is already making his move. And though he serves on the Republican whip team, Romney is now effectively working against party leaders and arguing to colleagues that the proper way to test each side’s contention is to hear from people directly involved in the Ukraine saga…

“I’d rather he not” push for witnesses, said Sen. Jim Inhofe (R-Okla.). “He isn’t all that close to the administration. … I don’t agree with him.”

Sen. David Perdue (R-Ga.) has compared Romney to “Jeff Flake on steroids,” and Sen. Rick Scott (R-Fla.) asserted last fall that Romney “thinks the worst of the president.” Trump himself called Romney a “pompous ass” when he expressed concerns about asking other countries to investigate Joe Biden.