Elon Musk and Mark Cuban are at it again.

The two have frequently sparred on social media. Lately, it has been over issues related to diversity, equity, and inclusion (DEI).

“Discrimination on the basis of race, which DEI does, is literally the definition of racism,” Musk posted in January. He later added, “DEI is just another word for racism. Shame on anyone who uses it,” in response to a post about Harvard President Claudine Gay’s resignation.

Cuban responded to Musk by posting a diatribe about his thoughts on DEI.

“Let me help you out and give you my thoughts on DEI 1. Diversity Good businesses look where others don’t, to find the employees that will put your business in the best possible position to succeed. You may not agree, but I take it as a given that there are people of various races, ethnicities, orientation, etc that are regularly excluded from hiring consideration.

“By extending our hiring search to include them, we can find people that are more qualified. The loss of DEI-Phobic companies is my gain. 1a. We live in a country with very diverse demographics. In this era where trust of businesses can be hard to come by, people tend to connect more easily to people who are like them. Having a workforce that is diverse and representative of your stakeholders is good for business.”

The two are at it once again. The latest spat started on X, where Musk posted in reference to former President Trump, “The choice is clear.”

And Cuban responded, “The Virtue of Selfishness.”

Fox Business reports on the latest brouhaha, which is still going on. Here’s the start of the story:

Mark Cuban on Wednesday slammed fellow billionaire Elon Musk and other business figures who have recently signaled support for former President Trump’s campaign in a social media post.

The latest flare up between the two billionaires came after Musk ally David Sacks posted a list on X of business leaders who’ve expressed support for Trump’s campaign — including Musk, Bill Ackman, Ben Horowitz, Marc Andreessen, Doug Leone, Joe Lonsdale, Peter Thiel, Cameron and Tyler Winklevoss among others — with the message, “Come on in, the water’s warm.”

Musk quoted Sacks’ post saying, “The choice is clear” — which led Cuban to reply with a quote tweet of his own that read simply, “The Virtue of Selfishness.”

Mark Cuban is a longtime critic of former President Trump and said this spring that he wasn’t worried about President Biden’s age — although he has recently expressed an openness to Democrats replacing Biden and potentially Vice President Harris on the party’s ticket in the wake of Biden’s debate performance.