Marco Rubio praised for 'refreshing' testimony on Venezuela and Iran nuclear deal Former Navy Captain Brent Sadler discusses Secretary of State Marco Rubio's heated Senate testimony on the Trump administration's agenda in Venezuela and Iran. NEW You can now listen to Fox News articles! Secretary of State Marco Rubio is leading the U.S. delegation to the high-profile Munich Security Conference — one year after Vice President JD Vance took the German stage in a speech that stunned many in Europe