The culture and legal wars over abortion are shifting to a new battleground: the use of pills that end pregnancies.

Abortion-inducing medication, which has become the most commonly used method for ending pregnancy, is the latest front in the battle over the legality of the procedure. A looming Supreme Court decision in the case Dobbs v. Jackson Women’s Health Organization could rescind the federal guarantee of abortion rights and effectively erase access to the pills in at least a dozen states.