House GOP leadership said Monday they are using a procedural loophole to keep a contentious bill defining sex as binary out of court.

Senate Bill 437 sailed through the 2025 Montana Legislature with the support of almost every Republican, but will not be sent to the governor’s desk to be signed into law — at least for the time being.

Sponsored by Kila Republican Sen. Carl Glimm, SB 437 defines sex as binary in all parts of Montana law. According to the bill, those two sexes are male and female, determined by a person’s reproductive systems. SB 437 is remarkably similar to legislation that was passed and signed into law in 2023, but has since been blocked by multiple legal challenges.

Procedurally, once a bill passes the Legislature, it is signed by the House speaker and Senate presiden

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