Secretary of State Marco Rubio on Tuesday expressed hope that a deal to end the war in Iran was in the cards, stressing that Tehran must severely curtail its nuclear program before any sanctions are lifted."There is the prospect before us, which could happen today, it could happen tomorrow, it could happen next week," Rubio told a Congressional panel.

Secretary of State Marco Rubio on Tuesday expressed hope that a deal to end the war in Iran was in the cards, stressing that Tehran must severely curtail its nuclear program…

The top US diplomat said Iran’s uranium stockpile and enrichment levels are “highly technical matters” that could take months to resolve.

Iranian leaders have recently agreed to negotiate "aspects" of their nuclear program, Secretary of State Marco Rubio said on Tuesday.