In this Nov. 29, 2017 file photo, White House Chief of Staff John Kelly, left, walks with White House staff secretary Rob Porter to board Marine One on the South Lawn of the White House in Washington.
In this Nov. 29, 2017 file photo, White House Chief of Staff John Kelly, left, walks with White House staff secretary Rob Porter to board Marine One on the South Lawn of the White House in Washington. Evan Vucci AP Photo
In this Nov. 29, 2017 file photo, White House Chief of Staff John Kelly, left, walks with White House staff secretary Rob Porter to board Marine One on the South Lawn of the White House in Washington. Evan Vucci AP Photo

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