U.S. President Donald Trump told reporters in the Oval Office on the 29th (local time) that the United States and Iran are conducting negotiations via phone. President Trump stated, "There's no need to fly for 18 hours just to see a document like before; with one phone call, you can get an answer within 15 minutes," evaluating this method as highly efficient, but added, "Personally, I prefer face-to-face communication." He explained that while negotiations between the two sides have made some progress, the key is whether Iran's concessions meet U.S. demands. President Trump emphasized, "No agreement is possible unless Iran clearly promises to completely abandon its nuclear weapons."