Missouri voters restored abortion rights two years ago. Now, Republican lawmakers are asking them to reverse that decision — with a different proposal designed to win over people who rejected the earlier ban.
Amendment 3, on the Nov. 3 ballot, would repeal the reproductive freedom protections voters approved in November 2024 and replace them with a near-total abortion ban that includes several exceptions. It also would put a ban on gender-transition treatment for minors into the state constitution. www.sos.mo.gov
A Narrow Victory with Support Beyond Democrats
The 2024 amendment passed with 51.6% of the vote, compared with 48.4% opposed — a narrow margin of about 96,000 votes.
That same election, Donald Trump won Missouri with 58.5%. Abortion rights received approximately 1.54 million votes, substantially more than Kamala Harris’ 1.2 million. Those totals indicate substantial support beyond Democratic presidential voters, including Trump voters, although election returns cannot identify individual voters’ choices. www.sos.mo.gov
Republicans controlling the General Assembly approved the new ballot measure in 2025. They cannot simply erase a constitutional amendment through ordinary legislation; voters must approve the change.
Why Supporters Expect a Different Result
The new proposal combines abortion restrictions with exceptions and a separate issue supporters believe can attract additional votes: prohibiting gender-transition care for people younger than 18.
The prohibition goes beyond surgery. It includes puberty blockers, which delay puberty, and hormones used to develop physical characteristics consistent with a person’s gender identity. Gender-transition surgeries alter physical sex characteristics. The measure includes exceptions for specified medical conditions. www.sos.mo.gov
Missouri already restricts these treatments for minors under state law. Adding the prohibition to the constitution would make it harder to change.
Its political purpose is more than speculation. Tom Estes, a Republican Senate staffer working on the campaign, told The 19th that the transgender provision could reach voters the campaign failed to win previously.
The campaign’s first television advertisement focused on transgender issues without mentioning abortion, Missouri Independent reported. missouriindependent.com
More Exceptions — and a Divided Opposition
Missouri’s 2022 ban allowed abortions only for medical emergencies. The new amendment would permit abortions for medical emergencies, fetal anomalies, and pregnancies resulting from rape or incest during the first 12 weeks. It also addresses care for miscarriages and ectopic pregnancies, which develop outside the uterus. Most abortions would still be prohibited. www.sos.mo.gov
Supporters present those exceptions as a politically achievable compromise. But they have divided the anti-abortion movement.
State Sen. Mike Moon and Abolish Abortion Missouri leader Wes Scroggins oppose the measure because it permits some abortions. Their faction also supports allowing criminal penalties against women who obtain abortions, a position many established anti-abortion organizations reject.
Some abortion opponents say the exceptions go too far and plan to vote against Amendment 3. Supporters argue that a narrower ban is better than no ban: If the amendment fails, Missouri’s current constitutional protections for abortion rights would remain in place. missouriindependent.com
An August SLU/YouGov poll found voters nearly evenly divided: 43% supported the measure, 44% opposed it and 13% were unsure. www.slu.edu
Why Access Has Returned Slowly
The 2024 vote restored abortion rights, but providers still had to challenge restrictions such as special clinic licensing rules, a 72-hour waiting period and requirements that doctors have privileges at nearby hospitals. Court battles delayed the return of services and briefly halted abortions again in 2025. www.reuters.com
With this amendment vote looming, providers have been reluctant to expand facilities and hire staff for abortion services they could be forced to stop offering if Amendment 3 passes.
A yes vote would repeal the 2024 protections and approve the new restrictions. A no vote would retain the existing constitutional protections. www.sos.mo.gov
