The government of Iran stated that it will only negotiate with Barack Obama and not with other United States officials or administrations.
No credible evidence supports the assertion that Iran declared it would negotiate exclusively with Barack Obama. The JCPOA was a multilateral P5+1 process involving Secretary Kerry, Foreign Minister Zarif, and six world powers—not a personal Obama channel. Iran's post-Obama refusals to negotiate cite distrust of specific leaders like Trump, not a declared "Obama-only" policy. No verified Iranian government statement naming Obama as the sole acceptable partner exists in the evidence record.