A review of the US Supreme Court’s decision in Trump v. CASA, Inc., which held that federal district courts’ universal preliminary injunctions that enjoin government officials from implementing and enforcing an executive order likely exceed the courts’ equitable authority granted by Congress under the Judiciary Act of 1789.

Friday’s decision limits the circumstances under which the court can issue nationwide injunctions — orders that stop a federal law or policy from being enforced while court battles play out.

In a June 27 ruling, the Supreme Court granted the Trump administration’s request to partially halt nationwide injunctions blocking President Donald Trump’s executive order ending birthright citizenship for certain people born in the U.