The new laws fly in the face of Roe v. Wade, the 1973 Supreme Court decision that established a constitutional right to abortion. But they are consistent with a trend in other states because of an expectation that a conservative majority on the court will overturn or significantly scale back the Roe decision by summer.

Roe prohibits states from banning abortion before a fetus is viable outside the womb, which is now about 23 weeks of pregnancy. The court is now considering a Mississippi law that bans abortion after 15 weeks of pregnancy, and in oral arguments in December a majority of justices signaled they would uphold it.

States were encouraged by the Texas law, which the Supreme Court has repeatedly declined to block. The court said that because state officials were not responsible for enforcing the law, it could not be challenged in federal court based on the constitutional protections established by Roe. In March, the Texas Supreme Court similarly declined to block the law, saying its hands had been tied by the requirement for civilian enforcement.

the Idaho Supreme Court stayed the law after Planned Parenthood sued to stop it, arguing that the law undermined privacy.

On Thursday, a coalition of abortion providers in Oklahoma filed lawsuits against the Texas-style bill that was passed, as well as the earlier ban scheduled to take effect in August.

Ms. Wales, the Planned Parenthood president, said the Idaho Supreme Court’s decision had given the coalition some hope it could block the Oklahoma bill.

A spokeswoman for Mr. Stitt declined to comment on Thursday, writing in an email that his office “does not comment on pending legislation.” But the governor has said before that he will sign any anti-abortion legislation that crosses his desk.


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