Washington DC, May 29 -- White House Deputy Chief of Staff for Policy and Homeland Security Advisor Stephen Miller said Iran has made "significant, material, and dramatic concessions" to the United States in ongoing negotiations, while stressing that no agreement has been finalised.

Speaking during an interview with Fox News, Miller said recent developments marked a major shift in US-Iran engagement compared to previous months.

"Iran has made significant, material, and dramatic concessions to the United States that would have been impossible only a short time ago," Miller said.

At the same time, he cautioned that negotiations remain incomplete and emphasised that US President Donald Trump continues to retain broad authority to act in d...