What’s the real story behind Trump’s fall from the gutter to whatever is lower?

I’m not kidding. This is a real question for you all.

The Republicans have been signally bigoted, and so especially misogynistic, for so long now that I can hardly imagine Trump talking the way he does is a shocking revelation for the GOP apparatchiki. I cannot believe these people ‘suddenly realised’ what a dreadful man their candidate has always been.

My first instinct was that sometime in the past two to three weeks, Trump has stepped on a powerful commercial interest of one or more of the party’s biggest sponsors. Hence the sudden rush to disavow for any reason that looks plausible.

But I’m not close enough to the ‘scene’ to work out what big bucks gravy train Trump might have jeopardised.

Any ideas?