Shares of Elon Musk’s electric vehicle maker fell sharply Thursday as investors fear his dispute with President Donald Trump could end up hurting the company.

Donald Trump on Monday addressed a question that’s been on many people’s minds ever since the president’s spectacular blow-out with former so-called “First Buddy” Elon Musk last week. Namely, what will happen to the red Tesla model S that Trump bought during a White House event in March to promote Musk’s electric vehicle brand amid backlash to the billionaire’s now-ended role leading the public spending-slashing,