The U.S. will reportedly allow Iran to enrich civilian-grade uranium in a proposed nuclear deal, marking a major concession from

President Trump claimed Monday that the U.S. won't allow Iran to enrich uranium under a potential nuclear deal. Why it matters: Trump's claim contradicts the proposal his envoy Steve Witkoff made to Iran on Saturday,

The preliminary U.S. proposal came as a confidential U.N. report described an Iranian initiative that had multiplied Tehran’s stockpile of near-bomb-grade uranium.