How long will President Donald Trump’s relationship with Elon Musk last? The alliance has so far defied predictions from the left (and parts of the right) that a relationship between two famously impulsive and mercurial billionaires would eventually lead to conflict. Instead, Musk is everywhere in the Trump administration—attending cabinet meetings, shaking hands with world leaders, smiling in the Oval Office. Musk’s Department of Government Efficiency, or DOGE, has embedded itself across nearly every federal agency. In many ways, the relationship is mutually beneficial: Musk has an almost limitless checkbook to bankroll Trump’s political operations, and DOGE is helping him deliver on a campaign pledge to “shatter” the deep state. Meanwhile, Musk has become the most powerful person in Washington, not named Trump. But the president also has a history of discarding allies when they are no longer valuable and many of his close advisors have become his harshest critics. So, can the Trump-Musk alliance survive for the long haul, or is it destined to go up in flames?