All successful people, particularly those in the public eye, have a sneaking suspicion that they’re really just frauds, and that when the public takes a closer look and stops praising their “genius,” then they’ll be found out. For most high achievers, that bit of insecurity is a motivator, the drive that allows them not to settle for the mundane and to keep the bar high for everything they do. But that’s not the same for mediocre people like Trump, the ones who lack the tools to reach that higher bar. So, in lieu of reaching high, they go low.