If neither of them can get 270 electoral votes, the President will be chosen by the House. This is good, because the Republican controlled House will just appoint Trump as president… right?
However, if just one faithless elector votes for someone like Jeb or McMuffin, that opens it up for the representatives to vote for them instead as some "compromise candidate". So the GOP establishment can now hand the presidency to Jeb and it will be completely legitimate and legal.
