"Forget about intelligence," the secretary of state said about major U.S. airstrikes on Iranian nuclear sites that will likely lead to wider regional conflict.

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

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.

U.S. President Donald Trump on Sunday raised the question of regime change in Iran following U.S. strikes against key military sites over the weekend, as senior officials in his administration warned Tehran against retaliation.

Trump's decision to join Israel's military campaign against its major rival Iran represents a major escalation of the conflict.