Russian President Vladimir Putin and United States President Donald Trump held a phone conversation lasting more than 90 minutes, placing Iran’s nuclear programme and the war in Ukraine at the centre of a renewed high-level diplomatic exchange between Moscow and Washington. The call on Wednesday underscored the widening role Russia is seeking in Middle East diplomacy while Trump signalled that ending the Ukraine conflict remained his priority in dealings with the Kremlin. Putin offered ideas on how to address the dispute over Iran’s nuclear programme, including a possible role for Russia in handling issues linked to Tehran’s enriched uranium. Trump later said Putin had expressed willingness to be involved in the enrichment question, but that he told the Russian leader he would rather see Moscow focus on ending its war in Ukraine. The exchange highlighted a diplomatic overlap between two major crises: the confrontation around Iran’s nuclear activities and the grinding conflict that began with Russia’s full-scale invasion of Ukraine in February 2022.
Kremlin aide Yuri Ushakov described the conversation as businesslike and said the leaders paid particular attention to Iran and the Persian Gulf. Putin backed Trump’s decision to extend a ceasefire arrangement involving Iran, arguing that a pause in hostilities could give negotiations more space and help stabilise the region. The Russian position reflects Moscow’s longstanding attempt to preserve influence with Tehran while positioning itself as a broker capable of speaking to both Iran and the United States.
Trump said the two leaders agreed that Iran must not acquire a nuclear weapon. Tehran has repeatedly maintained that its nuclear programme is for peaceful purposes, but its uranium enrichment levels and restrictions on inspections have kept Western governments concerned about the speed with which it could move towards weapons-grade material if it chose to do so. The nuclear dispute has been a central flashpoint since Washington abandoned the 2015 agreement in 2018, after which Iran gradually exceeded several limits imposed under that accord.
The timing of the call was significant. Iran has been testing a phased diplomatic proposal that would seek an end to hostilities, reopen the Strait of Hormuz for shipping and postpone the hardest nuclear questions to a later stage. That sequencing would give Tehran a route to de-escalation without immediately settling the fate of its enriched uranium stockpile, while Washington faces the challenge of extracting verifiable nuclear limits without appearing to reward brinkmanship.
Russia’s involvement brings both opportunity and risk for Washington. Moscow has technical knowledge from earlier nuclear diplomacy and a strategic relationship with Tehran, but its credibility with Western governments remains strained by the Ukraine war, sanctions and deep mistrust over Putin’s broader foreign policy objectives. Any Russian role in storing, transferring or monitoring Iranian nuclear material would require clear safeguards, coordination with international inspectors and acceptance from Tehran, Washington and key European governments.
Ukraine also featured prominently in the discussion. Trump said he suggested “a bit of a ceasefire” in Ukraine, while Moscow floated the possibility of a temporary pause around Victory Day on May 9. The Kremlin presented the idea as a humanitarian and symbolic gesture, but Kyiv has treated past short truce proposals with caution, arguing that Russia has used pauses to regroup while continuing pressure on the battlefield.
The Ukraine dimension complicates Trump’s handling of Putin’s offer on Iran. Accepting Moscow as a partner on Tehran could strengthen Russia’s diplomatic leverage at a time when Ukraine and European allies want sustained pressure on the Kremlin. Rejecting Russia’s involvement entirely could narrow the channels available to influence Iran, particularly if Tehran prefers intermediaries that are not aligned with Washington’s sanctions architecture.
The call also showed Trump’s preference for leader-to-leader diplomacy, a style that can move quickly but often leaves important details unresolved. A Russian suggestion on Iran’s uranium could become meaningful only if translated into a technical framework covering enrichment levels, stockpile control, inspection access and sanctions relief. Without those elements, the proposal risks becoming another broad diplomatic signal rather than a workable path towards a durable nuclear settlement.
Tehran’s calculations remain central. Iran faces economic pressure, regional military exposure and domestic political divisions over how far it should compromise. Hardliners are likely to resist any arrangement seen as surrendering nuclear leverage, while pragmatic voices may see value in using Russia, Oman or other intermediaries to secure breathing space. Washington’s challenge is to test whether Iran’s overtures are tactical or whether they can be shaped into enforceable commitments.