"The easiest way to save money in our Budget … is to terminate Elon's Governmental Subsidies and Contracts," Trump said in a post.

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.

Musk has called to “kill” Trump’s policy bill, criticizing the legislation as “massive, outrageous” and “pork-filled.”