On What Really Matters, Walter Russell Mead discusses the United States cutting off intelligence sharing with Ukraine, shutting down American consulates overseas, and President Donald Trump’s tariffs on US allies and enemies.

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Gunners from the Armed Forces of Ukraine fire at Russian position with a 155 mm self-propelled howitzer 2C22 in the Kharkiv region on April 21, 2024. (Anatolii Stepanov/AFP via Getty Images)