Exhibit A:
Donald J. TrumpVerified account
@realDonaldTrump We must fix our education system for our kids to Make America Great Again. Wonderful day at Saint Andrew in Orlando.

And then…
Donald J. TrumpVerified account
@realDonaldTrump 15m15 minutes agoI hearby demand a second investigation, after Schumer, of Pelosi for her close ties to Russia, and lying about it.
Hearby? Seriously, it’s the endless little errors that demonstrate the big problems. This is a message from the President of the United States. The sloppiness, the unwillingness to pay attention to details is troubling. Twitter showed him his spelling mistake. You’d think he would have corrected the error before blasting it out.
Look, everyone makes mistakes, but Trump – a man obsessed with his brilliance and the President of the USA – can’t take the time to correct a mistake Twitter flippin’ highlighted for him?
Trump is in all things a vindictive brat and playground bully, how playground taunt is “I hearby demand a second investigation, after Schumer, of Pelosi for her close ties to Russia, and lying about it.” It’s not just the spelling, it’s the pathetic way the sentence is structured and the obvious tit for tat mentality of “the great man”.