**Proposition 135, a citizen-initiated statute on Colorado’s November 3, 2026 ballot, would prohibit healthcare professionals from performing surgeries on minors to alter biological sex characteristics and bar state, federal, Medicaid, or insurance funds from covering them.** The measure, titled the Protect Children from Irreversible Sex Change Surgery Act, qualified after collecting nearly 165,000 signatures and applies broadly while carving out exceptions for certain disorders of sex development and male circumcision. It leaves non-surgical interventions such as hormones or puberty blockers untouched. Recent release of the state’s Blue Book voter guide and related analyses in mid-October have focused attention on enforcement details and terminology, sharpening public debate in the final weeks before the election. Trader pricing at 68.5% for passage reflects the initiative’s organized backing, Colorado’s recent pattern on similar citizen measures, and the absence of major late shifts in visible support.