Sounds, from this account, as if Elon was miffed at a comment by Navarro:
Musk, 53, responded Tuesday to the trade adviser’s suggestion on CNBC’s “Squawk Box” Monday that the Tesla boss was “not a car manufacturer” but “a car assembler,” pointing to the electric vehicle company’s importing of batteries and other key components to manufacture its cars.
“Navarro is truly a moron. What he says here is demonstrably false,” Musk wrote on X, adding in a subsequent post in which he tagged the “Re—d Finder”: “Tesla has the most American-made cars. Navarro is dumber than a sack of bricks.”
https://nypost.com/2025/04/08/us-news/elon-musk-rips-moron-trump-trade-adviser-peter-navarro/