The Useless Prince Who Rose to Power

Everyone in the country knew that The President had three sons.
Brandon Strong, David Wise, and Ethan Underwood.
As luck would have it, I was the one people called the useless third son.
So what if I was useless? There's only one throne, and everyone's fighting to be first. Who's going to settle for second?
They laugh at me for being too crazy, I laugh at them for not seeing through it all.
As the Art of War says: 'Plan, then act. Know when to stop, and you'll succeed.'