The stakes have never been higher: national security, civil liberties, the economy, the future of the republic. Yet few outside Washington actually understand how our government and political system should work, much less how it actually operates. On one level, it's a complex, interlocking world veiled in power brokering, bureaucracy, and big money. On another, it's the biggest, richest, most influential organization in the world, for better or worse.

Understanding how modern America is managed and governed is more vital than ever, but television, radio, newspapers, and social media...