Rome - A second round of U.S.-Iran nuclear talks are underway, this time in Rome, with President Trump's envoy Steve Witkoff and Iranian Foreign Minister Abbas Araghchi leading the delegations. Why it matters: The talks are taking place with debate still raging within the Trump administration — and between the U.

Iran and the United States began a second round of negotiations Saturday over Tehran's rapidly advancing nuclear program in Rome, U.S. and Iranian officials said.