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    McCain voices concerns about the US

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McCain voices concerns about the US

The contentious relationship between Sen. John McCain (R-AZ) and President Trump remains, even as McCain continues with his cancer treatments. CNN's Polo Sandoval reports.

McCain voices concerns about the US

The contentious relationship between Sen. John McCain (R-AZ) and President Trump remains, even as McCain continues with his cancer treatments. CNN's Polo Sandoval reports.