WASHINGTON (AP) — Voters in Missouri cleared the way to undo one of the nation's most restrictive abortion bans in one of five victories for abortion rights advocates, while Florida, Nebraska and South Dakota defeated similar constitutional amendments, leaving bans in place. Abortion rights amendments also passed in Arizona, Colorado and Maryland. Nevada voters also approved an amendment, but they'll need to pass it again it 2026 for it to take effect.

Another that bans discrimination on the basis of “pregnancy outcomes” prevailed in New York. A measure that allows more abortion restrictions and enshrines the state’s current 12-week ban was adopted in Nebraska and a competing one to ensure abortion rights failed. Results were still pending in Montana.

The Missouri and Florida results represent firsts in the abortion landscape, which underwent a seismic shift in 2022 when the U.S. Supreme Court overturned Roe v.

Wade, a ruling that ended a nationwide right to abortion and cleared the way for bans to take effect in most Republican-controlled states. Missouri is positioned to be the first state where a vote will undo a ban that's already in place. Currently, abortion is barred at all stages of pregnancy with an exception only when a medical emergency puts the woman's life at risk.

Under the amendment, lawmakers would be able to restrict abortions past the point of a fetus’ viability — usually considered after 21 weeks, although there’s no exact defined time frame. .