Trump attacks Carson, asks ‘how stupid’ are Iowans

FORT DODGE, Iowa (AP) — Donald Trump isn't backing away from sharply critical remarks about Republican presidential campaign rival Ben Carson's biography after a highly charged speech on Thursday night. Trump's campaign released an online video on Friday that continues to question Carson's account of trying to stab a friend when he was young.

FORT DODGE, Iowa (AP) — Donald Trump isn't backing away from sharply critical remarks about Republican presidential campaign rival Ben Carson's biography after a highly charged speech on Thursday night. Trump's campaign released an online video on Friday that continues to question Carson's account of trying to stab a friend when he was young.…