The relationship between President Trump and Elon Musk might be the most consequential alliance in American government. Trump has empowered the billionaire to slash and burn the administrative state, turning him into the commander and the enforcer of his administration's efforts to shake the federal bureaucracy to its core. It's a remarkable partnership between two mercurial men who once publicly disparaged each other -- and who really got to know each other only about six months ago. And it's one that could shape the future of the country.