OK, first thing is that apparently several senior generals have indicated that they would rather resign than serve a President Trump and do the hare-brained things Trump claims he would require them to do (can't remember where I read this. Daily Beast I think, possibly Rolling Stone). Bad news.
Secondly, people would get together and plan to impeach the Donald and possibly his Vice-President ASAP and on prettymuch any basis so Paul Ryan could then be President. Not all that bad news-Ryan is at least intelligent and a proper adult. He also says he has mellowed since his 'war on the poor' stint as Romney's running mate. Plus I quite fancy him. No one fancies Donald. Not even Melania.
Thirdly, markets everywhere tumble due to the very uncertainty of a Trump presidency. 2008 recession times 100. No one has any money or the ability to raise any, not even ISIS. Crisis everywhere, except Germany and Norway, which close their borders. Seriously bad news.
Fourthly, the living former presidents (Carter, Bush I, Clinton, Bush II, Obama) form the 5 Wise men committee and, in a complete break with convention, publicly urge caution on the new president. At the press conference, Clinton has to be restrained by Carter from an extended peevish rant at the American people for not choosing Hilary.
But seriously, as my DH points out, all it takes is for someone at a Trump rally to run up and mess with his coiffure and Trump is over as a serious candidate. I bet at an isolated base somewhere, various Navy Seals are training to do just that.