The court's action sets up a collision between the Food and Drug Administration's 23-year study and supervision of mifepristone, and the circumstances under which it can be prescribed.
In doing so, the court left standing a lower court decision that upheld the state's ban on a therapy that the American Medical Association says "is not based on medical and scientific evidence."
An eventual decision in the case could severely limit congressional options in enacting tax policy, and it could cost the federal government trillions of dollars in corporate taxes.
A couple who owned a controlling interest in a foreign corporation argue that a controversial Trump-era tax is unconstitutional under the 16th Amendment.
The justices struggled to decide whether to give a thumbs up or thumbs down to the multi-billion dollar Purdue Pharma bankruptcy deal--a deal meant to compensate victims of OxyContin.
Under the deal, Purdue agreed it owed $8 billion in criminal and civil fines. That deal is at the center of Monday's case because it releases the Sacklers from personal liability.
The Supreme Court's conservative justices seemed highly skeptical of how the Securities and Exchange Commission conducts in-house enforcement proceedings to ensure the integrity of securities markets.
The U.S. Supreme Court is adopting a code of ethics for its justices amid mounting criticism of gifts and trips from wealthy benefactors to certain justices.
Voters in Ohio, Virginia and Kentucky signaled support for abortion rights, even where it wasn't directly on the ballot, more than a year after the Supreme Court rolled them back.