There's a reason it hadn't happened in a generation. Big ideas—ideas about the role and size and scope of government—take time to debate, to normalize, and eventually, to become law of land.
From his first election to Congress as a 28-year-old to his reluctant rise to the speakership, Paul Ryan has maintained a laser-like focus on comprehensive tax reform.
It's a cause, and a career, that was decades in the making.