Informing U.S. engagement with the world

![Alan Cullison featured in front of a blue graphic design background.]()
![Ukrainian President Volodymyr Zelenskyy and NATO Secretary General Mark Rutte visit a makeshift memorial for fallen Ukrainian defenders in Kyiv, Ukraine. Ukrainian Presidential Press Service/Reuters]()
![Chairman of the Joint Chiefs of Staff Dan Caine speaks during a press conference with U.S. President Donald Trump at Mar-a-Lago club on January 03, 2026, in Palm Beach, Florida.]()
America’s Digital Empire Has a Trust Problem
By Kat Duffy
![A large colorful sculpture of the Google logo on display at the AI Impact Summit, in New Delhi, India.]()
The Supreme Court Clipped Trump’s Tariff Powers—and Opened New Trade Battles
By Jennifer Hillman
![President Donald Trump speaks about the Supreme Court's tariff decision during a press briefing, on February 20, 2026 at the White House in Washington D.C.]()
CFR Spotlights
The War in Ukraine
Russia’s invasion has reshaped European security, strained Western alliances, and tested the limits of international resolve. But, as the conflict enters its fifth year, the terms of any eventual settlement appear to remain as contested as the front lines themselves.
Trade and Tariffs
A landmark Supreme Court decision striking down the president’s use of emergency powers to impose tariffs has upended the legal foundation of Trump’s trade agenda — forcing a reckoning over which tariff authorities remain viable and what comes next for U.S. trade policy.
The World, Explained
Use CFR’s backgrounders and explainers to dig deeper into critical global issues.
The Spillover Podcast: Trump’s Tariffs Struck Down
The Spillover, CFR’s new weekly series, traces the ripple effects of global events across geopolitics, economics, technology, and finance. In a special episode, host Rebecca Patterson is joined by CFR President Michael Froman, a former U.S. trade representative, to unpack Friday’s Supreme Court decision that struck down Trump’s use of the International Emergency Economic Powers Act (IEEPA) to impose tariffs.
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