U.S. diplomacy under scrutiny

The latest round of United States-Iran diplomacy ended on April 12 without a deal, after 21 hours of talks in Islamabad and weeks of public contradictions from Washington. (time.com) Vice President J.D. Vance led the U.S. delegation in Pakistan, and he said Iran had “chosen not to accept our terms” before leaving for Washington. U.S. officials told reporters the demands included ending all uranium enrichment, dismantling major enrichment sites, and letting the United States take custody of Iran’s highly enriched uranium. (apnews.com) Those talks followed a six-week war and an earlier negotiating track that included Special Envoy Steve Witkoff and Jared Kushner, President Donald Trump’s son-in-law, in Omani-mediated meetings with Iranian Foreign Minister Abbas Araghchi. ABC News reported on March 26 that Witkoff publicly described Kushner as part of the prewar negotiating team. (abcnews.go.com) That detail drew scrutiny because Kushner holds no Senate-confirmed foreign-policy post, and critics said the channel blurred the line between formal diplomacy and presidential family networks. The Arms Control Association wrote on March 11 that Witkoff and Kushner met Araghchi in Geneva on February 26 for a third round of talks that Oman said had made “substantial progress.” (armscontrol.org) The criticism widened when Trump and his aides sent different signals in public. Politico reported on March 26 that Trump said he preferred a deal and that Witkoff said the administration was prioritizing diplomacy, even as the Pentagon moved thousands of additional troops, Marines, and 82nd Airborne Division forces into the region and Trump said he would “keep blowing them away.” (politico.com) Diplomacy with Iran is unusually sensitive because the core dispute is technical and political at the same time: Tehran says it has a right to peaceful nuclear enrichment, while Washington says enrichment can shorten the path to a bomb. In the Islamabad talks, that same fault line remained, with Iran defending its nuclear program and the United States insisting on zero enrichment. (time.com) Analysts also argued the prewar U.S. demands were so broad that they left little room for a negotiated middle ground. The Arms Control Association said the White House sought “no enrichment,” dismantlement of facilities, and removal of enriched uranium, while the Iranian side floated a proposal with a multi-year pause, resumed reactor-linked enrichment later, and broader International Atomic Energy Agency oversight. (armscontrol.org) Iran and the United States are also negotiating in a wider regional crisis, not a sealed conference room. Reuters reported on April 11 that Tehran tied progress in Islamabad to sanctions and Lebanon, while the Strait of Hormuz remained central because Iran had effectively blocked tanker traffic and Washington was pressing to reopen the waterway. (usnews.com) A parallel argument running through Washington foreign-policy circles is that the United States is trying to manage too many commitments with an outdated alliance model. In a November 2025 Foreign Affairs essay that circulated widely again this month, Emma Ashford wrote that the “unipolar moment” is over and argued Washington should push allies in Europe and Asia to carry more of the defense burden in a more fragmented world. (foreignaffairs.com) The White House has defended its approach as pressure backed by diplomacy, and Vance said in Islamabad that the central U.S. goal remained an Iranian commitment not to seek a nuclear weapon. But after Geneva, March 26, and April 12, the record shows a negotiation in which the messengers, the demands, and the military moves all became part of the dispute. (time.com)