Former Defense Secretary James Mattis told then-Director of National Intelligence Dan Coats that President Trump was “dangerous” and “unfit,” according to excerpts from Bob Woodward’s upcoming book “Rage.” Mattis, who left the White House at the end of 2018 over differences on defense strategy with the president, warned Coats that “there may come a time when we have to take collective action” against Trump, according to excerpts of the Woodward book reported upon by The Washington Post, The Post did not say if Woodward’s book clarified what kind of “collective action” Mattis was referencing.......