For months, Tesla shareholders were tormented by Elon Musk’s role in the administration of President Donald Trump. But any relief brought by his formal government exit last week quickly turned to fear as the electric-vehicle maker’s chief executive traded barbs with his former boss.

President Donald Trump lashed out on Thursday against Elon Musk, saying he was "disappointed" by the billionaire's public opposition to the sweeping tax-cut and spending bill that is at the heart of Trump's agenda.

President Donald Trump expressed disappointment over Elon Musk's opposition to a tax-cut and spending bill. The conflict is tied to the proposed removal of consumer tax credits for electric vehicles,