JOHN YOO: Trump scores historic win as Supreme Court reins in lower courts' overreach

The Supreme Court's 6-3 decision in Trump v. Casa limits federal judges' power to issue nationwide injunctions, allowing presidents to advance their constitutional interpretations

John Yoo is a distinguished visiting professor at the School of Civic Leadership and a senior research fellow at the Civitas Institute at the University of Texas at Austin, the Heller Professor of Law at the University of California, Berkeley, and a nonresident senior fellow at the American Enterprise Institute.

Casa represented an undeniable victory for the Trump administration. In ruling against many of Trump’s executive orders, district courts had used nationwide injunctions to halt such major initiatives as Trump’s suspension of foreign aid, removal of illegal aliens from Venezuela, layoffs of federal bureaucrats, a bar on transgender soldiers, ending racially discriminatory programs in higher education, and cuts and freezes in federal spending. Trump is now free to enforce those policies in states where the courts have not enjoined them. Ultimately, the Supreme Court will have to resolve the conflict between the federal courts that have enjoined Trump’s policies and those in other states that have not.