FILE - In this Fb. 9, 2016 file photo, Senate Armed Services Committee Chairman Sen. John McCain, R-Ariz. speaks on Capitol Hill in Washington. Tough talk about torture is a guaranteed applause line for Donald Trump on the GOP presidential stump. Trump has repeatedly advocated waterboarding, an enhanced interrogation technique that simulates the feeling of drowning. Last year, McCain and Sen. Dianne Feinstein, D-Calif. introduced an amendment to the 2016 defense policy bill that essentially codified the executive order of President Barack Obama. Feinstein said it was important because a future president could lift Obamas executive order. (AP Photo/Evan Vucci, File)