Cuba Raul Castro

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 back-to-back hearings on Capitol Hill for the first time since the Iran war began. The Republican former senator will sit before House and Senate committees on Tuesday 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. Rubio has defended President Donald Trump’s decision to launch the conflict.