Nobody at Tesla wants to get fired for sending the letter, so they reportedly left it unsigned. Tesla says it is difficult to source certain parts and components within the US. The carmaker has been overhauling its global supply chain in recent months.

Tesla told the Trump administration that its ongoing tariff war could make it more expensive for the electric car company to build vehicles in the U.S. “Trade actions should not (and need not) conflict with objectives to further increase and support domestic manufacturing,