Tesla for years had more repeat U.S. customers than any other major automotive brand but its loyalty has plunged since CEO Elon Musk endorsed President Donald Trump last summer, according to data from research firm S&P Global Mobility shared exclusively with Reuters.

Elon Musk and Tesla were sued by shareholders who accused them of securities fraud for concealing the significant risk that the company's self-driving vehicles, including the Robotaxi, were dangerous.

One country is clashing with the U.S., the other racing to appease Washington. Both approaches are being tested ahead of a looming deadline for trade deals.