A public spat between Elon Musk and Donald Trump has triggered Tesla’s biggest single-day loss, slashing over $150 billion in market value. Investors, once confident that political ties would buoy Tesla’s prospects, pulled out sharply after Trump threatened to axe federal contracts tied to Musk’s ventures. As accusations flew between the two powerful figures, shares fell 14%, marking Tesla’s worst trading session to date. The fallout also raised concerns over Musk’s autonomous vehicle ambitions and the future of SpaceX’s government-backed space missions.