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Committee chairman Sen. John McCain (R-AZ) listens during a hearing before Senate Armed Services Committee February 9, 2017 on Capitol Hill in Washington, DC.
Committee chairman Sen. John McCain (R-AZ) listens during a hearing before Senate Armed Services Committee February 9, 2017 on Capitol Hill in Washington, DC.

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Senator John McCain tells CNN's Jake Tapper about his brain cancer diagnosis and current health condition.

McCain on cancer: 'every life has to end'

Senator John McCain tells CNN's Jake Tapper about his brain cancer diagnosis and current health condition.