It’s likely for the same reason that he is already venturing out to packed halls campaigning for the 2020 election when he hasn’t accomplished anything in his current “presidency.”
Trump is a narcissistic egomaniac (redundancy intended) who is unable to survive without constant positive reinforcement. Like Sally Field some years ago on the Academy Awards, he wants and needs to be able to say “They like me!”
Twitter, along with well-controlled and choreographed “rallies” and “victory tours,” both provide what he needs: immediate adulation or, at the very least, immediate recognition. He has proven himself incapable of getting that by running the country, because he is incapable of running the country. Let’s just tweet, instead!
One can well imagine a young master Trump being spoiled from birth, all the way through college. His long list of lawsuits provides evidence of anyone who ever disagreed with him or stood in his way. That list probably includes the first teacher who unwittingly pointed out to him that the English language includes a much broader vocabulary than “tremendous,” “beautiful,” “smart,” “loser,” “fake,” “bad,” “weak,” “amazing,” and, of course, the always popular “very, very” or, at the extreme, “very, very, very.”
Early in his presidency he found out that “this is hard.” He has learned that he is virtually incompetent in just about every area of great significance public administration, and he cannot accept that. He is, in fact, the closest thing to a disaster that one would ever dare to contemplate. And this totally ignores what, at this point, appears to be an incredibly frightening, if not altogether treasonous, relationship with America’s most dangerous adversary on the world stage — Russia. Ask yourself, if he is such a bully with everyone else, why is he such a pushover with Russia?
Nevertheless, he moves ahead, but not necessarily forward, drawing sustenance from his supporters throughout the country and his followers on Twitter. He bullies and pushes his way to the front of the line, to the total shame of an entire country, including the vast majority of his own party, who have had to suck it up in so many ways that the “Republican Dance” rivals the most elaborate moves of any modern-day contortionist or breakdancer. His “surrogates” must be paid a fortune; how else to explain how they can say what he wants them to say, on air, without throwing up (live on CNN) or breaking out in fits of uncontrollable laughter?
When the president of the once most powerful country in the world shows himself to be nothing more than a dithering Tweety Bird, then every one of us should give serious consideration to taking a much stronger stance on those principles and ideals in which we believe.