That said I have heard some whispers that Trump is actually pissed about it. Here's hoping!
Of course he is.
It pretty much kills most of what they built. Merch? Slogans? They spent months already hammering the age issue of Biden and now suddenly Trump is the oldest of the candidates. He even called himself a "young man" in a recent post because he can't stand the idea that he is now the old buffoon.
Even his VP pick was done on the calculation he was fighting Biden. Most candidates would pick a VP to fill in a hole in their support like Pence did with moderate Republicans, but the strategy was to focus on the agism and try to split the Dems, so he picked Vance as a favor to Musk and Thiel so they would help bankroll him. With Biden out he is now stuck with Vance, who is only loved by people that already love Trump while Dems are collecting together.
Memos are already flying out trying to point out things like her laugh of all things, but most Trump supporters are sexist assholes and want Trump to call her a cunt who sucked off men to get her position and even Trump knows those types of attacks are going to be risky to anyone not in the MAGA sphere.
The fact Kamala is already polling two points ahead of him, even after two huge events that usually boost numbers (attempted assassination and RNC) is a big red flag for his hail Mary to stay out of prison.