OpenAI’s CEO has stolen Musk’s thunder and it’s a lesson for every leader. Sam Altman and Elon Musk aren’t friends. They used to be colleagues back when the two were co-founders of OpenAI, and they seemingly shared the belief that artificial intelligence could be a huge net benefit for society.

Altman and Musk were OpenAI’s founding co-chairs in 2015, but their relationship has devolved into name-calling and lawsuits.

President Donald Trump was asked to address Elon Musk's criticism of OpenAI CEO Sam Altman at an Oval Office press opportunity with reporters on Thursday. REPORTER: Does it bother you that Elon Musk criticized a deal that you made publicly that he said that he tweeted that?