The rivalry between Sam Altman and Elon Musk is entering its Apprentice era. Both men have the ambition to redefine how the modern world works—and both are jockeying for President Donald Trump’s blessing to accelerate their plans.

The relationship between Elon Musk and Sam Altman progressed from an initial friendship to a bitter rivalry. Here's why.

The relationship between Sam Altman and Elon Musk goes back to the early days of OpenAI —then a nonprofit research lab. But now the two men find themselves in a very public feud over the billion-dollar AI company. Today on the show, we catalog their friendship turned feud and how the company that started it all still remains core to their beef.