In this July 27, 2017, file photo, Sen. John McCain, R-Ariz., left, walks onstage as Lindsey Graham, R-S.C., center, points to him while Sen. Ron Johnson, R-Wis., watches as they speak to reporters at the Capitol as the Republican-controlled Senate was unable to fulfill its political promise to repeal and replace "Obamacare" because of opposition and wavering within the GOP ranks. (AP Photo/Cliff Owen, File)
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