WASHINGTON — In a blow for anti-abortion advocates, the Supreme Court on Thursday rejected a challenge to the abortion pill mifepristone, meaning the commonly used drug can remain widely available. "We are disappointed that the Supreme Court did not reach the merits of the FDA’s lawless removal of commonsense safety standards for abortion drugs," said Erin Hawley, one of the group's lawyers. "Thank goodness the Supreme Court rejected this unwarranted attempt to curtail access to medication abortion, but the fact remains that this meritless case should never have gotten this far," she said in a statement. The Supreme Court put that ruling on hold, meaning the pill remained widely available while litigation continued. Both sides appealed to the Supreme Court.