Elon Musk and Donald Trump hurled insults at each other all day on Thursday after the president’s former ally attacked the bill containing his entire legislative agenda. And though Musk had somewhat backed off his hardline stance a few hours later,

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

Tesla’s stock is driven by sentiment, which has soured greatly. Plus, Musk has now alienated Republicans and Democrats alike.