Handed down on the last day of June, the Supreme Court’s decision in Trump v. CASA was the most important of the term. The court’s six Republican-appointed justices, in an opinion by Justice Amy Coney Barrett, ruled that district court judges can no longer issue universal or nationwide injunctions. Such injunctions exploded in the first six months of President Donald Trump’s second term, as mostly Democratic-appointed judges used them to negate one White House initiative after another. Fed up, the administration asked the justices to decide whether issuing such decrees was a legitimate exercise of judicial authority. They agreed, and CASA was the result.