During a legislative hearing in 2011 that was a prelude to Montana’s debates on abortion, State Representative Keith Regier displayed an image of a cow and made the argument that cattle were more valuable when pregnant.
The comparison drew a prompt rebuke from some women in the room, but Mr. Regier, a Republican, declined to apologize.
Mr. Regier has now emerged as the patriarch of a new family political dynasty that has injected fresh conservative intensity into debates over abortion, diversity training and, this spring, transgender rights.
Mr. Regier chairs the Senate’s powerful judiciary committee, while his daughter, Amy, leads its counterpart in the House.
The trio of legislators, each wielding a similar brand of unflinching conservatism, were among the most powerful proponents of a set of bills that took particular aim at the rights of transgender people.