At the Council on Foreign Relations, Michael Doran debates Ray Takeyh and Barbara Slavin on President Joe Biden’s failed Iran diplomacy, the prospect of a nuclear Iran, and the threat Tehran poses to the global order.

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US President Donald Trump reacts after signing executive orders imposing tariffs on imported goods in the Rose Garden at the White House on April 2, 2025, in Washington, DC. (Andrew Harnik via Getty Images)