Trump fires U.S. national security adviser John Bolton

WASHINGTON -- U.S. President Donald Trump on Tuesday forced out John Bolton, his hawkish national security adviser with whom he had significant disagreements on Iran, Afghanistan and a cascade of other global challenges. The two men offered opposing accounts on Bolton's less than friendly departure, a leave-taking example of what had been a fractious relationship almost from the start. Trump tweeted that he told Bolton Monday night his services were no longer needed at the White House and Bolton