Tonight, millions of Americans are expected to tune in to watch one of the biggest sports events of the year, college football’s national championship game. On the field, the game will be determined by the skill of the players and coaches, but behind the scenes, secretive groups of donors are wielding enormous influence over what fans will see. David A. Fahrenthold, an investigative reporter for The Times, discusses the shadowy industry upending college football, and how it has brought amateur athletics even closer to the world of professional sports. Guest: David A. Fahrenthold, an investigative reporter for The New York Times.