Secretary of State Marco Rubio butted heads with CBS host Brennan over Iran's nuclear ambitions, dismissing weaponization order questions as "irrelevant."

Rubio's comments come after several media reports said the US strikes on Iranian nuclear facilities set back Tehran's program by only a matter of months.

Secretary of State Marco Rubio got into a tête-à-tête on CBS News’ Face the Nation as he dismissed questions about Iran’s nuclear “weaponization ambitions.” Host Margaret Brennan pressed Rubio on whether the United States had intelligence that Iran had given an order to weaponize its enriched uranium and whether intelligence.