"Their lawyer argued that the amendment — which would allow abortion until the fetus is viable outside the uterus, around 24 weeks, but permit the state to regulate it after that — could affect state laws that ban minors from getting gender-affirming health care, and prohibit human cloning."

Missouri Judge Rules That Abortion Ballot Measure Is Invalid

But abortion rights groups hope an appeals court will reverse the ruling before the Tuesday deadline to print the state ballots.