The world's most powerful man and its richest man are lobbing threats and insults on their rival social media platforms, sparked by disagreements over Trump's "big, beautiful bill."

Elon Musk just launched a war against the GOP. Now the party’s hopes of holding onto power are at stake. Musk has gone from helping Republicans take total control of Washington — spending nearly $300 million to become the single biggest known donor last year — to attacking the highest-ranking leaders of the party and daring the rank and file to cross him.