Clinton, Trump camps brawl on Twitter

WASHINGTON (AP) — Donald Trump and Hillary Clinton are engaged in their first full-blown Twitter war. Trump started it, mocking President Barack Obama's endorsement of the presumptive Democratic nominee on Thursday.

WASHINGTON (AP) — Donald Trump and Hillary Clinton are engaged in their first full-blown Twitter war. Trump started it, mocking President Barack Obama's endorsement of the presumptive Democratic nominee on Thursday.…