Errol Musk told the BBC that his son began to break with Biden in 2021 after a critical decision by the president.

Elon Musk has arrived. Shares of his electric car-maker Tesla added roughly $100 billion in value when markets opened Wednesday following Donald Trump’s presidential election victory. Musk backed the Republican to the hilt,

The Biden administration is playing it smart, laying the groundwork to protect clean energy programs from a potential rollback under Trump. By finalizing a wave of loans and grants for clean energy before year-end, they're effectively locking in incentives, making it far harder for a new administration to undo them come January.