On What Really Matters, Walter Russell Mead examines the breakdown of President Donald Trump’s Iran memorandum of understanding, the president’s newfound admiration for Ukraine, whether Americans are becoming postliterate, and why we are not a “creedal” people.
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BYD’s chip Xuanji A3 is displayed during the 2026 World AI Conference on July 17, 2026, in Shanghai, China. (Getty Images)