Arizona to vote on enshrining abortion rights in state constitution in November

Arizona voters will decide this November whether to add abortion rights into their state constitution, a prospect that could turbocharge voter turnout in a critical battleground state in the 2024 election.

Late Monday, the Arizona secretary of state’s office announced that it had validated an estimated 577,971 signatures in support of a ballot measure, the Arizona For Abortion Access Act, to establish a constitutional right to abortion in the state.

Related: ‘Terrified of losing their rights’: abortion is a leading issue for Arizona’s Latino voters

On X, the office called the measure “the largest petition effort in Arizona history”. The measure will be listed on the ballot as Proposition 139.

Arizona is not the only state to face the prospect of an abortion-related ballot measure this November. So far, states including Colorado, Florida and Nevada – another key battleground state – are also set to hold similar ballot measures. Tuesday also marks the deadline for the state of Missouri to determine whether to add its own abortion-related measure to its ballots.

Since the US supreme court overturned Roe v Wade, ballot measures that protect or preserve abortion rights have successfully passed even in red states such as Ohio, Kansas and Kentucky. However, they have never been tested during a presidential election. Democrats are hoping that enthusiasm for the measures will boost turnout among their base, especially since the vice-president, Kamala Harris, one of the Democrats’ most effective messengers on abortion rights , became the party’s nominee.

Abortion is currently legal up until 15 weeks in Arizona. Earlier this year, the state supreme court ruled that a near-total abortion ban from 1864 – enacted before Arizona even became a state – could take effect. That ruling unleashed weeks of nationwide outrage and ultimately led a handful of Republicans to break with their party to vote in favor of a bill to repeal the 1864 ban .

If passed, Arizona for Abortion Access Act would establish that Arizonans have “a fundamental right to abortion”. It would protect the right to abortion until fetal viability, which is typically dated to around 24 weeks of pregnancy, and allow for abortions past that point if a medical provider deems them necessary to protect a pregnant individual’s life, physical health or mental health.

In May, a CBS poll found that 66% of Arizona adults want abortion to be legal in all or most cases.