First rule of politics: you can't win unless you're on the ballot. Second rule: If you run, you may lose. And, if you tie, you do not win.

Most US presidents since World War II have led military actions without a declaration of war by Congress, though most, if not all, have properly consulted and sought support from Congress. That is the wise thing to do.

Your performance depends on your people. Select the best, train them and back them. When errors occur, give sharper guidance. If errors persist or if the fit feels wrong, help them move on. The country cannot afford amateur hour in the White House.

I would not say that the future is necessarily less predictable than the past. I think the past was not predictable when it started.

Keep your sense of humor. As General Joe Stillwell said, 'The higher a monkey climbs, the more you see of his behind'.

Don't necessarily avoid sharp edges. Occasionally they are necessary to leadership.

I don't do quagmires.