Missouri voters on Tuesday rejected Amendment 3, a Republican-backed ballot measure that sought to repeal the state’s constitutional right to abortion and prohibit gender-affirming medical procedures for minors. The Associated Press called the result at 11:18 p.m., with 55.2% of voters opposing the amendment and 44.8% supporting it, based on 94% of ballots counted. The measure would have also restricted abortion access to cases of medical emergency, fetal anomaly, rape, or incest—with rape and incest exceptions limited to the first 12 weeks of pregnancy.
In a separate ballot measure, Missouri voters blocked a Republican-drawn congressional map that aimed to redraw the state’s districts to favor the GOP. The Associated Press projected the outcome, which prevents the new map from taking effect in future elections. The measure had been tied up in legal challenges before reaching the ballot.
Reproductive Rights and Transgender Healthcare
Amendment 3 was the first attempt by anti-abortion advocates to repeal a 2024 constitutional amendment that had enshrined abortion rights in Missouri. The 2024 measure, passed with 52% support, established a fundamental right to abortion until fetal viability, defined as the point at which a fetus can survive outside the womb with medical support. The 2024 amendment also protected access to prenatal care and birth control.
The 2024 abortion rights amendment had been one of 11 state-level ballot initiatives passed since the U.S. Supreme Court overturned federal abortion protections in Dobbs v. Jackson Women’s Health Organization (2022). The 2024 measure legalized abortion up to fetal viability, though Missouri retained some restrictions on how procedures could be performed.
Amendment 3’s sponsors, including Republican Governor Mike Kehoe, framed the measure as a correction to what they described as voter confusion in 2024. Kehoe argued in campaign remarks that Missourians did not fully understand the 2024 ballot initiative, stating, “I think people are going to be very clear on what they’re voting on this time.” He did not address whether combining abortion restrictions with a ban on transgender medical care for minors may have contributed to confusion.
The proposal to ban gender-affirming care for minors—including puberty blockers, cross-sex hormones, and surgeries—was already prohibited by state statute prior to the 2024 election. Missouri lawmakers had enacted the ban in 2023, making the inclusion of the provision in Amendment 3 largely symbolic. Opponents of Amendment 3 argued that the measure was an attempt to overreach by combining two contentious issues into a single ballot question.
Congressional Redistricting Battle
The rejected congressional map had been drawn by Republican lawmakers in 2023 to redraw Missouri’s districts, aiming to unseat Democratic Rep. Emanuel Cleaver by placing his Kansas City-based district into a heavily Republican area. The new lines were part of a mid-decade redistricting push initiated by former President Donald Trump to boost Republican representation ahead of the 2024 elections.
The redistricting effort faced legal challenges from a group called People Not Politicians Missouri, which gathered over 300,000 signatures—far exceeding the 106,000 required—to place a referendum on the ballot. Missouri’s Republican Secretary of State, Denny Hoskins, initially refused to certify the referendum, arguing it was unconstitutional. The dispute reached the U.S. Supreme Court, which rejected Republican attempts to implement the map for the 2024 elections three times.
With the ballot measure’s failure, the 2023 congressional map remains in place, and Cleaver was re-elected to Congress on Tuesday, according to the Associated Press.
Campaign Spending and Advocacy
Abortion rights advocates outspent opponents of Amendment 3 by approximately $7 million in the final weeks of the campaign, according to October filings. The measure’s opponents, including anti-abortion groups, argued that the inclusion of the transgender healthcare ban was a strategic move to appeal to conservative voters. Some Republican strategists, such as state Auditor Scott Fitzpatrick, acknowledged that the abortion issue was closely contested in Missouri, while expressing confidence in the popularity of restrictions on transgender medical care for minors.
Opponents of Amendment 3, including reproductive rights organizations, framed the measure as an attempt to roll back fundamental rights and warned that its passage would embolden similar efforts in other states. Advocates for transgender rights highlighted that the measure’s defeat sent a signal of voter support for gender-affirming care, despite existing state bans.
Long-Term Implications
The rejection of Amendment 3 maintains Missouri’s current abortion laws, which allow procedures up to fetal viability. The state remains one of four states with abortion on the ballot in recent elections, reflecting ongoing debates over reproductive rights since the overturning of Roe v. Wade.
The failure of the congressional map also underscores the growing role of ballot initiatives in countering legislative redistricting efforts. Missouri’s experience aligns with broader national trends, where voters in multiple states have used referendums to challenge mid-decade redistricting plans initiated by political leaders.
The outcomes in Missouri may influence future ballot measures in other states, particularly as advocacy groups and lawmakers continue to test voter sentiment on contentious social issues.