My guess? He is unable to let go of campaign mode and focus on governing. His successes are in the past so he goes back regularly for sustenance. Those times were so easy for him. He thought it would always be that way. He controlled everything in his old life. His present life has shown him he really controls nothing. He works in concert WITH two other branches of government. He does NOT control them. He isn't used to that. It takes adjustment and acceptance. Can he adjust after so many years of calling ALL THE SHOTS? As prez he will NEVER do that again. Never. Can he live with that? Meanwhile his supporters joyfully and joyously give him what he longs for...acceptance/approval/respect/adoration. He isn't getting that these days and he cannot survive without it. Apparently. Thus the campaign rallies will continue throughout his prez days .Isn't it sad for a grown man to have to resort to that to just make it through his days? When you are grown you are supposed to put aside "childish" things. Some find it harder to do than others.