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.

The president also asserted that Musk's days of blistering attacks on the bill were motivated by the proposed elimination of consumer tax credits for electric vehicles. Musk, the CEO of electric vehicle maker Tesla,

President Trump said his relationship with Elon Musk might be over after Musk spent the past few days trying to defeat Trump's "big, beautiful bill."