During oral arguments, several justices questioned whether doctors challenging FDA approval of mifepristone could base their complaint on their opposition to abortion.
The justices heard arguments on an anti-abortion group's lawsuit challenging the Food and Drug Administration's lifting of restrictions on access to the drug.
New York Attorney General Letitia James spoke at a rally outside the Supreme Court in support of access to the abortion pill mifepristone. Justices heard oral arguments over challenges to the medication's access.
The pharmaceutical industry warns that if courts can second-guess FDA approval of drugs, cases could arise on other contentious issues including vaccines, birth control and hormone therapy.
Sylvia Gonzalez sued officials in Castle Hills, Texas, alleging she was arrested for criticizing the city manager and organizing a petition to oust him.