The Republican former senator will sit before House and Senate committees to make the State Department's annual budget request. But the focus is likely to shift quickly to the already unsteady ceasefire between Washington and Tehran, which has been further tested in recent days by back-and-forth attacks.

Secretary of State Marco Rubio is set to face a litany of questions about the Trump administration’s fragile and stalling diplomatic efforts around the world when he appears for…

Secretary of State Marco Rubio faces congressional scrutiny over the Trump administration's Iran war efforts and shifting diplomatic goals. He will also address escalating…

Secretary of State Marco Rubio will appear on Capitol Hill on Tuesday to testify before committees in both the Senate and the House.