The six o’clock news is up, and the commentator is blasting your candidate. Phones are ringing off the hook. People are shouting, whizzing through the room. A dozen reporters are waiting for answers to their questions. And you haven’t slept in two days.

It’s no wonder people call up battle metaphors to describe life on the presidential campaign trail. The road to the White House is the most brutal contest of American politics — an 18-hours-a-day, seven-days-a-week exhilarating, exhausting adventure.