Watch White House's Sanders addresses the media as debates over DACA, shutdown heat up

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White House press secretary Sarah Huckabee Sanders briefs reporters on Tuesday.

White House physician Dr. Ronny Jackson is also expected to talk about the results of the 71-year-old president's physical on Friday. The White House has attempted to rebut concerns about the president's intelligence and fitness for office raised in a book, "Fire and Fury: Inside the Trump White House," released earlier this month.