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The falling-out between Elon Musk and President Trump went into overdrive on Thursday. Both men have powerful ways to keep it going.

June 5, 2025, 7:58 p.m. ET
The spectacular blowup on Thursday between President Trump and Elon Musk has ripped apart a shaky alliance between two of the world’s most powerful men. Their feud could have far-reaching consequences if it drags on or even escalates.
Here are eight ways they could inflict pain on each other.