Donald J. Trump’s allies want him to talk about the issues
His entire political campaign strategy has been about attacking his opponent personally. He did it with Hillary in 2016, With Biden in 2020, and again with Biden in 2024. He tried to do the same with Harris, but he hasn't found something that sticks yet and that's causing a lot of problems.
This is what you get when you promote a guy who can't do anything but insult people, even if he will agree to sign anything for anyone that says "You're doing a good job, champ"
It's crazy that it took the Democratic Party eight years to realize that clapping back was a thing they could do, but it's nice that they've finally figured it out.
There's only one thing Trump wants more than the power of the Presidency: Attention.
He hates that the news is dismissive of him and are instead following the Harris campaign with excited interest. It seems to be getting in the way of unifying their message.
The smart GOP politickers (e.g. Senator John Thune) know the path to victory is to keep quiet on the worst part of their policies for now and repeat policy buzzwords and attacks until the rank-and-file fall in line. Trump isn't patient enough to play that game.
It also caused massive inflation and put the economy on shaky ground, which is really what they want to pin on Biden. So going back to 2019 makes sense but is dishonest.