This week, Walter Russell Mead and Jeremy Stern discuss pro-Hamas mobs in DC and New York, France’s snap elections, Thursday’s Supreme Court decisions, and what Walter saw and heard on the front lines in Ukraine on What Really Matters.

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The P4 laboratory, on the campus of the Wuhan Institute of Virology, in Wuhan, in China's central Hubei province. (Hector Retamal/AFP via Getty Images)