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Many of the most controversial cases are still unresolved. But early rulings already signal that Trump is scoring major wins that could strengthen not only his presidency but future Republican administrations as well.
Major wins for executive authority
One of the most significant victories came in June 2025, when the Supreme Court delivered a 6 to 3 ruling in Trump v. CASA. The case centered on whether federal district courts can issue nationwide injunctions that block presidential executive orders across the entire country.
While the dispute originated from Trump’s executive order on birthright citizenship, the Court avoided ruling on the constitutionality of the policy itself. Instead, the justices zeroed in on the growing practice of universal injunctions issued by individual judges.
The ruling limited that power, delivering a major blow to activist courts that had repeatedly shut down Trump’s agenda with a single stroke of the pen.
The decision carried enormous consequences. At the time, more than 310 lawsuits had been filed challenging Trump’s second term executive actions. Many of those cases relied on nationwide injunctions to freeze policy before it could take effect.
U.S. Solicitor General John Sauer argued that such injunctions exceeded judicial authority and created chaos for the executive branch. The Court agreed, reinforcing long standing limits on equitable power under Article III.
Another major development involves Trump’s authority to remove officials at so called independent agencies.
Earlier in 2025, the Supreme Court granted Trump’s request to pause lower court rulings that reinstated National Labor Relations Board member Gwynne Wilcox and Merit Systems Protection Board member Cathy Harris, both Democratic appointees fired by the administration.
That move sent shockwaves through Washington. It suggested the Court may be prepared to revisit Humphrey’s Executor, a 1935 decision that restricts a president’s ability to fire leaders of independent agencies without cause.
In December, the justices heard oral arguments in Trump v. Slaughter, a case involving Trump’s effort to remove a Federal Trade Commission official. Several justices appeared skeptical of Humphrey’s long standing protections, signaling a possible expansion of presidential control over the administrative state.
Legal headwinds remain
Despite those wins, Trump’s agenda faces serious legal resistance in other areas.
One of the most closely watched cases involves tariffs imposed under emergency authority. In Learning Resources v. Trump, challengers argue the administration misused the International Emergency Economic Powers Act to enact a 10 percent tariff on most imports.
The law gives presidents broad authority during national emergencies tied to foreign threats. But several justices, including some conservatives, questioned whether the conditions cited by the administration truly qualify as emergencies.
Others noted that the statute does not explicitly authorize tariffs or taxes, raising doubts about how far emergency powers can be stretched.
Birthright citizenship is another looming legal battle that could define Trump’s legacy.
The Supreme Court has agreed to review Trump’s executive order restricting birthright citizenship, signed on his first day back in office. The order would deny automatic citizenship to many children born to parents who are in the country illegally or on temporary legal status.
Critics argue the policy clashes with nearly 150 years of precedent tied to the 14th Amendment. The order sparked a wave of lawsuits in 2025 from states and activist groups.
So far, no court has accepted the administration’s interpretation of the amendment. The Supreme Court’s eventual ruling could redraw the boundaries of citizenship law for generations.
As these blockbuster cases move forward, one thing is clear. Trump’s second term is not just about policy. It is about redefining the balance of power between the presidency, the courts, and the unelected bureaucracy. And the Supreme Court now holds the pen that will write that history.
