Iran nuclear talks are nearing a critical stage as US President Donald Trump warns that Washington may take tougher action if diplomacy fails.
Trump said in Washington, DC, on Wednesday, May 20, 2026, that the United States is close to either securing a deal with Iran or moving toward further steps if no agreement is reached.

Iran Nuclear Talks Enter Final Stage

Speaking to reporters, Trump said negotiations with Iran were in their “final stages” and warned that the United States could do “some things that are a little bit nasty” if talks collapse. He added that he still prefers a negotiated outcome rather than renewed conflict and further loss of life.

The comments come as Washington and Tehran remain divided over Iran’s nuclear activity, sanctions relief and security guarantees. The Trump administration has continued to seek strict limits on Iran’s nuclear program and military expansion, while Iranian officials have pushed for relief from US sanctions and assurances against future military action.

Ceasefire Pause Leaves Diplomacy Under Pressure

The latest remarks follow the pause of Operation Epic Fury under a ceasefire arrangement that reduced immediate tensions but did not resolve the larger dispute. Trump also acknowledged that he had recently considered additional military action before allowing more time for negotiations to continue.

The diplomatic push remains fragile because both sides are holding firm on core demands. For US readers, the outcome matters beyond Washington’s foreign policy debate: renewed escalation could affect global oil markets, shipping routes in the Strait of Hormuz and broader security in West Asia. Reuters reported that oil prices moved sharply as markets reacted to hopes of a possible deal.

For now, the talks appear to be at a turning point. A breakthrough could ease months of tension, while a collapse could reopen the risk of military confrontation between the United States and Iran.