**Missouri Amendment 3**, a legislatively referred constitutional amendment on the November 3, 2026 ballot, would repeal the voter-approved 2024 reproductive freedom provision, restrict abortion to limited exceptions (medical emergency, rape or incest up to 12 weeks, or fetal anomaly), add parental consent requirements, and embed a permanent ban on gender transition surgeries, cross-sex hormones, and puberty blockers for minors. The latter provision largely codifies restrictions already enacted in 2023 statute (with a 2027 sunset under active legislative challenge to make permanent). Opposition campaigns launched in spring 2026 emphasize the measure’s effort to override the 2024 electorate’s decision, while legal challenges have already forced revisions to ballot language. Recent polling indicates the gender-care restrictions enjoy broad support and could help the measure, yet the linkage to abortion limits has not overcome broader voter resistance to rolling back recently expanded reproductive rights. With active litigation over the 2024 amendment still unresolved and organized opposition framing the proposal as a reversal of voter will, trader consensus assigns low probability of passage.