John Bolton: the flame-throwing aide now threatening Trump

John Bolton has long been known as the bomb-thrower of US diplomacy, but the former White House national security advisor now threatens to blow a hole in President Donald Trump's impeachment defense.Fired last September, Bolton's coming tell-all book about his 17 months in the Trump administration could contain the strongest evidence yet for charges that the president illicitly held up military aid to Ukraine to help his own reelection campaign.A draft of "The Room Where it Happened," scheduled