Republicans on the Senate Judiciary Committee seized on the issue of judicial philosophy during a hearing for President Joe Biden’s nominee to the U.S. Court of Appeals for the First Circuit, a line of questioning that culminated in a spat with a Democratic senator who accused her colleague of “mansplaining.”

U.S. District Judge Gustavo Gelpí, an appointee of ex-President George W. Bush to the Puerto Rico court, throughout Wednesday’s hearing reiterated he will follow the precedent set by the U.S. Supreme Court, as he has done during his 20 years of judicial service.