I suspect that many of our learned fellow posters are once again ascribing too much intelligence to someone whose defense against paying spousal support was, I repeat, a brain worm.
Seeing contradictory efforts, language, and actions is IMHO a flailing about of someone who, while not as screwed up as Trump, keeps trying to follow a few goals and then flailing about like a dog after two bones.
First, he wanted to replace Biden. Well, that failed, but he realized (correctly) that there were a lot of concerns about Biden’s age that he could take advantage of, thus the third party concern. I’d guess that at that point, he was hoping that if Biden dropped out, or possibly in 2028, to be able to reclaim the party, especially if he made a credible showing in 2024 -and- showed he had some crossover with Republicans (his screwed up anti-vax stance, etc).
As he became something of a joke, and didn’t score many sponsors, he kept turning ever right-ward, both because he’s apparently crazy (see vax, brainworms, etc) AND that’s where he was getting his money from. Which was great for him, but became a liability for Trump as he stopped stealing from Biden (hello Harris!) and started to erode Trump’s support.
So now he needs something to show for it, and he’s not gonna leave until he GETS IT. Whether that be a payout from Trump, a role from Harris, or just running as best he can for fame and fortune.
TL;DR - he’s not conflicted in motivations and goals, he’s just flailing about because he can’t keep up with the changes, and he’s a low-level whackadoodle.