Trump told NBC News' Tom Llamas he learned Iran may be trying to reconstitute its nuclear program after the U.S. military “wiped out” three of its nuclear sites in June.

US President Donald Trump warned that Iran’s supreme leader should be “very worried,” as both sides prepare for their first formal negotiations since the United States bombed Tehran’s nuclear program last year.

The Iranian leader who slammed President Donald Trump just days ago said Tuesday that his country is now pursing "fair and equitable negotiations."

Trump issued a new warning to Iran and its supreme leader, Ayatollah Ali Khamenei, ahead of expected talks over Tehran's nuclear program.

Amid a new Iran crisis, it’s getting harder to see how Trump emerges with the kind of crisp, easy win that he craves.

President Donald Trump says he and Chinese President Xi Jinping discussed the situation in Iran in a wide-ranging call as the U.S. administration pushes Beijing and others to further isolate Tehran.

“He’s in a situation where he needs to do something,” Brit Hume said.

Trump threatens Iran with military action while pursuing diplomatic talks. Recent drone shootdowns escalate tensions as diplomatic summit approaches.

Many people in Tehran and Tel Aviv are worried that Trump will make good on his threats to attack Iran again, but for some, it's fear laced with hope.