Witkoff warns Iran is 'a week away' from 'bomb-making material' as Trump weighs action

"It's up to 60%," Witkoff said of Iran's enrichment level. "They're probably a week away from having industrial-grade bomb-making material."

"We can't have that," he said. "This is something that they have to stick with until they prove to us that they can behave."

"With the amount of sea power, naval power that we have over there, why they haven't come to us and said, 'We profess that we don't want a weapon?'"

Witkoff told Lara Trump he met with Pahlavi at the president's direction.

"I think he's strong for his country, cares about his country, but this is going to be about President Trump's policies, not Mr. Pahlavi's policies," he said. 

"I think the president is interested in hearing everyone's views. He has no pride of authorship [which] is maybe the best way for me to say it, which I greatly respect because he's open to new ideas and new ways of thinking."

Fox News' Max Bacall contributed to this report.