Why this is not a time for schadenfreude:
Several comments have asked I said this. Very simple: This kind of sudden move often signals a serious crisis, and we’ve had too many of those. If Pence is positive, that calls into serious question the line of succession. If the problem is Trump, then the whole election could become even more chaotic. Either scenario could give the GOP a chance to do more mischief to the election. And by the way, Trump has not made any public appearance today.
If it’s something else, that probably means an international situation serious enough to secure the Vice President, or to bring him in to take over for a president whose judgment is even more questionable than usual.
None of these are possibilities for any American to be gleeful over.