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.

According to The Financial Times, Tesla has been changing its global supply chain in recent months, trying to build and source as many materials and components from the US as it c

The electric carmaker’s warning about tariffs comes despite its boss's key position in the Trump administration.