So, initially, Trump wanted more money for "The Apprentice". So instead of asking for more, he said he was more interested in running for president, under the idea that if he looked like he wasn't interested, but had a visible fan presence, NBC would be willing to renegotiate. However, instead, he went out day one with a racist comment, NBC just flat out fired him, and instead, he started imagining himself with his own network.
Elsewhere, the party chiefs were expecting the Koch brothers to eventually come to some sort of agreement with Trump, and because Trump is good money after bad, they're not going to touch him. Plus, Trump is nouveau riche garbage, the Trump vs. Koch beef is about class WITHIN the upper class, and the Kochs might as well by America's Rotschilds compared to Trump.
Meanwhile, Ailes knew his time at Fox News was coming to an end, so he's been playing Iago this whole time and angling to set up a Trump News Network. Alex Jones sees the writing on the wall and has decided to pitch his wagon to Trump's star, hoping to get a spot as Trump's alternate for O'Reilly. Trump would much RATHER run a TV network (or rather, put his name on a TV network and have Ailes run it) than actually BE president, so he's actively trying to escape his Faustian bargain and not actually get elected. The key to this is "honesty", he can't pivot to the center, because the people who would leave Fox and watch Trump TV are dependent upon their ideology never being challenged, so Trump is in a hard place.
But, of course, this is all dependent upon Trump still having money and a brandable name at the end of this, which is in doubt. How much money he actually has is considerably less than what he brags about having, and how much clout his name will have to get investors would be in question. If he can exit the race and still brand himself as a "winner", possibly by ditching in September, that's his best bet.
MEANWHILE, the Trump kids are trying to salvage what they'll get out of this, and I do not envy being them at all. Dad is spending THEIR money. Ailes sees Trump as his only way out, Jones sees Trump as his best chance at mainstream platform, Paul Ryan can't NOT support the candidate, Mitch McConnell is on the way out come January, and we're watching the death throes of a party. This is a bunch of rats clinging to the side of Trump as he sinks the party.
The gag is that if they'd be able to see past 20 years of irrational hatred for the Clintons, Hillary would be their ideal center-right candidate. But they can't, because the Lewinski trial was collective vendetta for Nixon, and that Clinton didn't quit in disgrace irrevocably broke the psyches of an entire generation of grey eminences.
And for the Left, Hillary is a magnificent sacrificial goat. They can agree with everything on the Clinton agenda, even vote for it, and still talk a big game about Progressive ideals. After all, it was Hillary or Trump, right? Whose side are you on?