Mark Cuban on potential presidential run: 'We will see'
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Billionaire Mark Cuban is leaving the door open for a potential presidential bid, according to a new report.

“We will see,” Cuban told Business Insider when the businessman and television personality was asked if he would run for president one day.

Cuban’s comments come after a Twitter battle with President Trump on Sunday morning over Cuban's fitness for the White House.

"I know Mark Cuban well," Trump tweeted. "He backed me big-time but I wasn't interested in taking all of his calls. He's not smart enough to run for president!"

Cuban responded to Trump with a short “Lol,” then expanded further with a screenshot of emails he had sent to Trump before he was elected.

He also slammed Trump in a reply to another Twitter user.

"But isn't it better for all of us that he is tweeting rather than trying to govern?" he asked.

Cuban and Trump have had a contentious relationship after Cuban backed Democratic nominee Hillary ClintonHillary Diane Rodham ClintonBiden slams Trump over golf gif hitting Clinton Overnight Cybersecurity: Equifax hit by earlier hack | What to know about Kaspersky controversy | Officials review EU-US privacy pact Overnight Tech: Equifax hit by earlier undisclosed hack | Facebook takes heat over Russian ads | Alt-right Twitter rival may lose domain MORE for president. The Sunday morning Twitter feud follows a New York Post story that cited Cuban as Trump’s “biggest fear” as a Republican or independent challenger in 2020.

Like Trump, Cuban is a billionaire businessman with stints on reality TV. Cuban is a frequent panelist on ABC’s “Shark Tank" and is the owner of the NBA's Dallas Mavericks.