Since the Supreme Court overturned Roe v. Wade in 2022, voters in more than a dozen states have decided abortion questions directly at the ballot box. On November 3, 2026, voters in four more states will do so: Missouri, Virginia, Nevada and Idaho. The measures point in different directions. Three would protect abortion access; one would end protections that voters approved two years ago.
This guide explains what each measure does, in neutral terms, and why the type of measure matters as much as the wording.
How we got here
In Dobbs v. Jackson Women’s Health Organization (2022), the Supreme Court held that the U.S. Constitution does not protect a right to abortion and returned the issue to the states. Since then, ballot measures have become one of the main ways the question is settled. Measures protecting abortion rights passed in California, Michigan, Ohio and Vermont in 2022 and 2023, and in Arizona, Colorado, Maryland, Missouri, Montana, Nevada and New York in 2024. Voters rejected attempts to restrict abortion in Kansas, Kentucky and Montana. In 2024, protective measures fell short in Florida, where 57% voted yes but 60% was required, and failed in South Dakota. Nebraska voters approved a measure allowing a ban after the first trimester.
Missouri: Amendment 3 would repeal the 2024 amendment
Current law: In 2024, Missouri voters narrowly approved a constitutional amendment protecting abortion until fetal viability. Courts then blocked the state’s near-total ban, and abortion became legal again, although some restrictions, such as a 72-hour waiting period, have remained in effect while lawsuits continue.
What the measure does: The legislature placed a new amendment on the ballot that would repeal and replace the 2024 amendment. It would ban abortion except in medical emergencies, for fatal fetal anomalies, and for pregnancies resulting from rape or incest up to 12 weeks. It would require a parent’s or guardian’s consent for minors, bar most public funding for abortion, and also ban gender-affirming care for minors.
A yes vote repeals the 2024 protections and writes the new restrictions into the constitution. A no vote keeps the 2024 amendment. A state appeals court rewrote the official ballot summary after finding the legislature’s version did not make clear that a yes vote would end the existing right. If it passes, Missouri would become the first state where voters reversed a constitutional abortion protection they had previously adopted.
Virginia: a constitutional right to reproductive freedom
Current law: Virginia is the only Southern state without a ban or an early gestational limit. Abortion is legal through the second trimester; third-trimester abortions are allowed only in narrow circumstances under state law.
What the measure does: The amendment would put a fundamental right to reproductive freedom into the state constitution, covering abortion, contraception and fertility care. The state could regulate abortion in the third trimester but could not prohibit it when needed to protect the patient’s life or physical or mental health, or when the fetus is not viable.
How it got here: In Virginia, the General Assembly must pass a constitutional amendment in two separate sessions, with an election in between, before it goes to voters. It did so, and the measure is on the ballot. Two lawsuits challenged it. One, by a county supervisor arguing the amendment was not properly circulated, was dismissed in July and is on appeal; another, challenging the ballot wording, was still unresolved as early voting began in September.
A yes vote adds the right to the constitution, so a future legislature could not restrict it by ordinary law. A no vote leaves abortion governed by statute, which the legislature can change.
Nevada: the second required vote
Current law: Abortion is legal up to 24 weeks under a statute that voters themselves affirmed in a 1990 referendum. Because of that vote, the legislature cannot change the law without going back to the voters.
What the measure does: It would add to the state constitution a right to abortion by a qualified health care provider until fetal viability, or later when needed to protect the patient’s life or health. Nevada requires a citizen-initiated constitutional amendment to pass in two consecutive general elections. Voters approved this one in 2024 by roughly two to one, so this is the second and final vote.
A yes vote puts the protection in the constitution. A no vote keeps the current statutory protection, which would remain in place either way.
Idaho: Proposition 1 would create a statutory right
Current law: Idaho has one of the strictest bans in the country. Abortion is prohibited except to prevent the patient’s death and, in the first trimester, in reported cases of rape or incest.
What the measure does: Proposition 1, the Reproductive Freedom and Privacy Act, would legalize abortion before fetal viability, and after viability in medical emergencies. It also protects access to miscarriage care, prenatal and postpartum care, contraception and fertility treatment.
How it got here: Supporters gathered signatures from 6% of registered voters in at least 18 of Idaho’s 35 legislative districts, and the measure was certified in July. The Idaho Supreme Court twice ordered parts of the official ballot language rewritten after challenges that it was misleading.
The catch: This is a statute, not a constitutional amendment. Idaho’s legislature can amend or repeal a citizen-passed law without limits, and it has done so before, including on term limits in 2002 and on Medicaid expansion in 2019.
Why the type of measure matters
- Constitutional amendments (Missouri, Virginia, Nevada) are hard to undo. Changing them usually takes another statewide vote.
- Statutory initiatives (Idaho) carry the force of ordinary law and can be changed by the legislature.
- Vote thresholds differ by state. All four of this year’s measures need a simple majority. Florida’s 60% rule in 2024 is the main reason a majority-supported measure failed there.
What “fetal viability” means
Several measures use the term fetal viability: the point at which a fetus could likely survive outside the uterus with medical care. It is a medical judgment about a specific pregnancy, not a fixed week, though it is generally placed around 22 to 24 weeks. Measures that use it usually leave the determination to the treating clinician.
What happens after the vote
Passing a measure is often the start, not the end. In Arizona, Ohio and Missouri, voters approved protections, but some existing restrictions, such as waiting periods and limits on telehealth, remained in effect for months or longer while courts decided whether they conflicted with the new language. Expect lawsuits over implementation in any state where the result changes the law.
How to read your ballot
- Read the summary for what a yes vote does. In Missouri, a yes vote removes an existing right. In the other three states, a yes vote adds or strengthens one.
- Check whether it is an amendment or a statute. That tells you how lasting the change would be.
- Look up the official voter guide. Your state election office publishes the full text and the official summaries.
For the longer history of women’s rights at the ballot box, see the 19th Amendment and the fight for suffrage. For how votes are tallied and certified after November 3, see how votes are counted and certified.