That's what it was in 2016 too, there was a thing with Trump saying CA had millions of illegal votes for Hillary and set up a team to prove it. Oddly those findings weren't really talked about, easy to drown out with the noise he caused every single day of his term. Like there was something with Ivankas trademarksc(patents?) in China and the Moscow tower, I can't even remember which one he used to down our which anymore.
There's a decent chance I forgot which scandels it was in reference to but there was even an article about how he tweeted something to change the news focus.
I bet another big reason is that he can hold rallies and get his narcissistic high. Has to be awesome for a narcissist to hold events where people are there just to hear him ramble.