Donald Trump doesn't tweet for you, he tweets for himself
No surprise here, but as always Nerdwriter puts it into more eloquent words: Donald Trump is just like us, tweeting the most stupid comments onto Twitter which automatically makes it news. But what he's doing isn't new, it's just new for the office of the President.
With all this news of Twitter being in dire financial circumstances, I wonder what he'll do if Twitter shuts down during the next 4 years.