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WASHINGTON, DC - DECEMBER 22:  U.S. President Donald Trump talks with journalists after signing tax reform legislation into law in the Oval Office December 22, 2017 in Washington, DC. Trump praised Republican leaders in Congress for all their work on the biggest tax overhaul in decades.  (Photo by Chip Somodevilla/Getty Images)
WASHINGTON, DC - DECEMBER 22:  U.S. President Donald Trump talks with journalists after signing tax reform legislation into law in the Oval Office December 22, 2017 in Washington, DC. Trump praised Republican leaders in Congress for all their work on the biggest tax overhaul in decades.  (Photo by Chip Somodevilla/Getty Images)

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    Stelter says Trump is the denier-in-chief

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Stelter says Trump is the denier-in-chief

Brian Stelter says President Trump and his spokespeople follow a pattern: deny something until it becomes true. How much harm does this cause? How does it make covering the White House more difficult?

Stelter says Trump is the denier-in-chief

Brian Stelter says President Trump and his spokespeople follow a pattern: deny something until it becomes true. How much harm does this cause? How does it make covering the White House more difficult?