Elon Musk, the world’s richest man, threatened to fund primary challenges against supporters of President Trump's sprawling tax and spendng bill 'if it is the last thing I do on this Earth.'

Tesla remains Musk’s best-known business, but its fortunes are less directly tied to the government than SpaceX, his rocket-building company. SpaceX’s $350 billion valuation largely rests on the many government contracts that fuel it. SpaceX’s work for NASA has ramped up in recent years in support of the Artemis mission to return to the moon.

Tesla stocks have also been negatively impacted by the feud between Trump and Musk. At press time, Tesla stock (TSLA) has been down by over 5.72% in pre-market trading. The company's stock dropped sharply to $296.01, marking a three-week low as of July 1.