The Major Questions Doctrine may be applied against Trump's tarriffs after the court invoked the doctrine to deny aggressive regulatory initiatives by the Biden administration.

 

Will Trump’s Tariffs Survive Supreme Court’s ‘Major Questions’ Test?

The justices used the doctrine, a judicially created method of reading statutes, to thwart several major Biden programs.

By Adam Liptak

Reporting from Washington

Oct. 27, 2025