The odds that any one of these things happen to #Trump individually are pretty low. Collectively? The odds that one of these happens are reasonably high. By no means a slam dunk. I would say it's more likely than not that one of these things happens, albiet barely.
Let's call it 52-48, a coin flip. That's HUGE. And if that happens #Haley is the likely nominee and though I'm not a fan of horse race polls this far out Haley clearly has a real shot against #Biden. https://www.rawstory.com/raw-investigates/president-donald-trump-news/?rsplus