The last adult in the Trump White House playground has gone – and the president is throwing his toys around.
James Mattis, as defence secretary, was one of three retired generals in the Trump administration whose hope was to contain an ill-informed, temperamental, and unpredictable president. Now they’re all gone: national security adviser HR McMaster, pushed out early this year; White House chief of staff John Kelly, giving up at the end of December; and now Mattis, who resigned after losing hope that Trump can be restrained from impulsive actions, defying his advisers, threatening US allies and even

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