Trump is also impulsive. His IQ may be, as he says, "one of the highest," but in practice his brain often ejaculates prematurely, spewing ill-considered statements before gathering all the facts and thinking through the ramifications. Trump's early morning tweets — Saturday's and those of other days — are a striking reflection of all of these deficiencies coming together. A short attention span, a capacity for deception and self-deception, and impulsivity lead Trump down paths which are far from optimal for the country or his own narrow objective of managing the crisis engulfing his fledgling presidency.