Trump launched the ultimate vanity project: running for President.
Unfortunately Trump had to "be Trump", acting like an idiot, Tweeting, saying stupid things during the debate, being rude and obnoxious, lying, and ultimately making Hillary's case for her. And he is on tape saying very nasty things about doing horrible things to women.
And he will be 100 million dollars poorer for it, by most accounts including his own. With his name, brand, and reputation ruined, not to mention the Republican Party. He has nobody to blame but himself.
And for what?