The letter reflects comments by many U.S. businesses concerned by Trump's tariffs, and is notable because it is from Tesla. It is not clear who wrote the letter, which is unsigned but is on company letterhead.

The electric car company led by Elon Musk builds all the cars it sells in the United States in California and Texas, shielding it from tariffs that could devastate competitors.

Tesla's reported letter comes after unpredictable Trump trade policy moves that have unsettled businesses and markets.