Ilya Somin

n this post, I summarize key points from the Federal Circuit ruling against Trump's massive IEEPA tariffs, in our case against them: reason.com/volokh/2025/...

We just prevailed in our case against Trump's massive IEEPA tariffs, in the Federal Circuit! All challenged IEEPA tariffs ruled illegal, but scope of injunction TBD. Will have more to say later. Here is a link to the ruling (7-4 decision by en banc court): www.cafc.uscourts.gov/opinions-ord...

My new @thedispatchmedia.bsky.social article on "Why Donald Trump's Iran War is Unconstitutional." It covers a wider range of issues than my earlier writings on this subject, including why the War Powers Act does NOT authorize this war: thedispatch.com/debates/dona...

24 states led by Oregon just filed first lawsuit challenging Trump's massive and illegal Section 122 tariffs. See my post for more, including why lawsuit deserves to prevail: reason.com/volokh/2026/...

My thoughts on today's US Court of International Trade ruling ordering refunds of all IEEPA tariffs ruled illegal by Supreme Court in Learning Resources decision: reason.com/volokh/2026/...

It has been mentioned before. But my post explains how it defeats every pro-administration argument.

Every argument for Trump claim that children of illegal migrants can be denied birthright citizenship would also have denied it to numerous freed slaves and their children, thus going against main purpose of 14th Amendment Citizenship Clause. See my post for reasons why: reason.com/volokh/2026/...

This war is blatantly unconstitutional - undeniably a large enough military action to require congressional authorization. Its wisdom and morality are closer calls. But I'm skeptical regime change (which would be good) can be achieved by air attack alone: reason.com/volokh/2026/...

I did this @constitutionctr.bsky.social podcast on the Supreme Court tariff decision. Other participants were Zach Shemtob of @scotusblog.com and Julie Silverbrook (NCC). megaphone.link/NCC2191263670

I did a @chkbal.bsky.social podcast about the tariff case. @greggnunziata.bsky.social interviewed me. Video linked below: www.youtube.com/watch?v=amda...

My assessment of today's frustrating Supreme Court oral argument in the Pung v Isabella County home equity theft takings case (in which I wrote amicus brief for @cato.org & property scholars). The justices seemed to be focusing on the wrong issue: reason.com/volokh/2026/...

I got interviewed about the tariff case by @lexpress.fr (one of France’s leading media outlets): www.lexpress.fr/idees-et-deb...