Hillary will cough the first time, through necessity or habit, and you'll be seeing the Dems blanch and the Pubs nod knowingly.
The only avenue open to the Dems is to put Hillary in bed and hope for the sympathy vote. Mono would be a good excuse. "Full recovery expected."
Stocks are up because Trump's numbers are up. The people who think the markets will crash if Trump wins are going to be terribly disappointed. Most likely see a moonshot.