“Secretary of State Marco Rubio joins ‘This Week’ in an exclusive interview on the fallout of the Oval Office clash between Presidents Trump and Zelenskyy. British Ambassador Lord Peter Mandelson discusses the U.K.'s response to U.S.-Ukraine tensions. Minnesota Democrat Sen. Amy Klobuchar expresses concern following the face-off between Presidents Trump and Zelenskyy." Time Codes: 00:00 Intro 01:55 Mary Bruce reports on the tensions between Presidents Trump and Zelenskyy following their hostile