Is Donald Trump suffering from a serious case of sleep deprivation? A New York Times columnist says Trump's behavior on the campaign trail may be caused by extreme lack of sleep. Timothy Eagan wrote: “Trump gets by on barely half the amount of sleep recommended for a healthy life....three or four hours, and sometimes just 90 minutes.” The Times says sleep deprivation makes people “cranky and temperamental,” “impulsive,” and “smaller things set them off.” The newspaper suggests that may account for his outbursts on the campaign trail where the GOP front runner said he wanted to punch a protester and...