Thune vows not to overrule parliamentarian on megabill

By Jordain Carney | 06/03/2025 06:05 AM EDT

Senate staff are already in communication with the chamber’s legislative referee.

Senate Majority Leader John Thune (R-S.D.) speaks with reporters.

Senate Majority Leader John Thune (R-S.D.) speaking with reporters Monday. Francis Chung/POLITICO

Senate Majority Leader John Thune signaled Monday that Republicans won’t move to overrule the chamber’s parliamentarian during an upcoming debate on President Donald Trump’s “big, beautiful bill.”

“We’re not going there,” Thune said when asked by reporters about overruling parliamentarian Elizabeth MacDonough, who will play a special role in vetting the bill for compliance with the strict Senate rules allowing Republicans to bypass a Democratic filibuster.

Senate staffers met with MacDonough during last week’s recess to vet the House-passed megabill and talk through their own ideas, conversations first reported by POLITICO.

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Thune said that committee staffers tasked with drafting the legislation will continue conferring with her this week and next week. At the end of the process, MacDonough will make rulings on whether various policies comply with the chamber’s rules.

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