This is one of those times when you wonder why anybody would want to be president, much less spend years of his or her life running for the job.
I remember the 2000 campaign, and drawing a cartoon commenting on how Al Gore had been preparing all his life to be president. He would probably not take a loss well.
Bush, on the other hand, looked like somebody who'd been drafted because his brother was defeated when running for governor of his state, which happened to be the case. After losing, he would probably shrug and say, "I tried, Daddy!" and happily go back to running his baseball team.
To him, being President was all about the cool plane and getting to wear that nifty windbreaker with the presidential seal on the chest. The rest--sadly--is history.
There is no upside to the Afghan war. We won't know when we've won, but we may well know if we've lost. Like Vietnam, it could go on and on, ensnared in the tentacles of geo- and domestic politics.
Not something you'd want to be commander-in-chief for in your worst nightmares.