Insiders portray defense secretary as increasingly isolated after officers with impeccable reputations forced outSince Donald Trump’s first term, they have been viewed comfortingly as the “adults in the room,” a last line of defense against the impulsive whims of a president with access to the nuclear codes.Now – after an unprecedented wave of firings that has been compared by some to Stalin’s purges – the Pentagon top brass no longer seem like such a reliable bulwark. Continue reading...