Supreme Court 6-3 decision restricts universal nationwide injunctions.
District courts cannot block presidential actions for entire country.
Injunctions limited to relief for actual plaintiffs only.
Ruling in Trump v CASA Inc case from 2025.
It involved challenge to birthright citizenship executive order.
This change makes it harder for opponents to stop policies quickly everywhere.
Lower courts must now follow complete relief principle for parties.
https://www.supremecourt.gov/opinions/24pdf/24a884_8n59.pdf (official Supreme Court opinion Trump v. CASA Inc)
https://www.scotusblog.com/cases/trump-v-casa-inc/ (SCOTUSblog summary and analysis)
President Trump:
Today’s Historic Slaughter Decision by the Supreme Court is the Greatest Increase in Presidential Power in the last 100 years. Such a Monumental Ruling at such an important time! pic.twitter.com/X4oUKFdUII
— Open Source Intel (@Osint613) June 29, 2026