You'd never know by looking, but there is a logic behind the presidential nominating process. The tiny Iowa caucuses give little-known long shots a chance to build a name through sweat equity. Compact New Hampshire tests the retail skills of the candidates. Elections in South Carolina and Nevada take the show south of the gnat line and west of the Rockies. And then Super Tuesday--the big time.
At some point along the way, though, the theories of political insiders collide with the physical realities of time, space and human endurance. That's when the logic starts to go haywire. The candidates grow...