Evan, I respect your strong views and feel you and I agree on many, but I think I'd take the odds of Hillary becoming an conservative champion over this happening.
Trump is the perfect president for the current US citizen.
Allen Weisselberg, CFO of the Trump Organization, has flipped and gotten immunity.
Some very optimistic people seem to believe Weisselberg is doing so only to get Cohen. That's an extremely dangerous and counter-factual claim as the evidence seized from Cohen's office, and the taxi medallion issues, were already plenty to take Cohen down.
Again, there's a reason why circa two weeks ago Trump started tweeting more frequently and acting more unhinged than usual. Especially over the last 7-10 days. It stands to reason that his attorneys or others were made aware of Cohen & Weisselberg's impending flips.
At this, numerous top Trump campaign figures have been convicted, pled guilty, or there are confirmed reports the grand jury is hearing evidence about them, and that Mueller is clearly attempting to indict them. Now, two top executives from the Trump Organization have pled guilty or flipped for immunity.
As I said, I expect it will be a continual drip drip drip from here. And, we haven't yet seen Mueller's case or evidence on obstruction and conspiracy with Russia. I am 100% certain that Mueller will conclude Trump obstructed justice (or at least tried). As I've said before, I'm less certain he's got the goods, or can get the goods, on Trump as it pertains to Russia, and a conspiracy to defraud the US/influence the election.
It is more damaging to Trump for a constant drip of criminal and illicit behavior to come out about Trump's top executives and campaign management than for one big report to come out.
As always, the question becomes how long can Trump survive. I'm not sure why you are so convinced of his ability to withstand this kind of pressure. The "Teflon Don" adage about Trump has been more bark than bite. He gave in on separating families, he had to go back and claim Russia did meddle after Helsinki, etc. He's showing way less ability to withstand damaging political hits than before. But the most important factor is that I don't think any of us can comprehend, nor have awareness, of how intense the pressure is right now on Trump, and how much it may increase in the coming weeks and months.
Watch the GOP and red-state Dems. The more often they buck him, and the number of them that join others in doing so, will be a key to how damaged Trump's political prospects really are.