Billionaire and Dallas Mavericks owner Mark Cuban told CNBC on Monday that President Donald Trump should have said nothing about NFL players protesting the national anthem.
"Why even comment before you know what you're talking about?" the billionaire investor said in an interview on "Squawk on the Street."
Cuban said the NFL has always been involved in politics at some level.
Trump's criticism on Twitter of players who kneel during the national anthem sparked angry protests around the NFL on Sunday.
"Just because you have a Twitter account doesn't mean you have to use it," Cuban said. "Just because you can say something, doesn't mean you should."
When asked whether the president is going to apologize, Cuban said: "The president is not going to apologize. Are you kidding me? The president should read a book."
"If he dishes out, he's got to be able to take it," Cuban added
Cuban supported Democrat Hillary Clinton in the 2016 presidential election. Cuban has criticized Trump over issues and Trump has blasted Cuban likewise.
On Sunday, Trump called for fans to demonstrate their own form of protest – by boycotting NFL games unless the league fires players who kneel during the national anthem.
"This is nothing new. We want to listen to the players' feedback," Cuban said. "The only thing that's changed now is the president is getting involved."
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