Joshua Villanueva is JURIST’s Washington, D.C. Correspondent and an LL.M. candidate in National Security and U.S. Foreign Relations Law at The George Washington University Law School.

The US Supreme Court heard over two-and-a-half hours of oral argument Wednesday in a closely watched case testing whether the President may use emergency economic powers to impose tariffs absent explicit congressional authorization. The argument drew significant political and institutional attention, with multiple members of Congress in attendance, including Senators Amy Klobuchar (D-MN) and Ed Markey (D-MA), and Representative Jason Smith (R-MO). Among those from the Trump administration in attendance were Treasury Secretary Scott Bessent, Commerce Secretary Howard Lutnick, and US Trade Representative J

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