He says he could also crush Hillary Clinton
The billionaire businessman also said in an email Monday that either he -- or his longtime political favorite Michael Bloomberg -- could "crush the Republican nominee."
He believes he could also trounce Democratic frontrunner Hillary Clinton.
"I think the conformity the Republicans require of candidates on social issues will make it far easier for any [Democratic] nominee not named Hillary," Cuban wrote. "I think she has lost her shot."
Cuban first traded emails about running for president with CNBC, the network that airs his Shark Tank reality show, saying it's "a fun idea to toss around."
But in a note to CNNMoney he said, "I have no interest in running," to clear up any confusion about his intentions.
Cuban has previously disavowed any plans to run for the nation's highest office. When asked if he would consider a presidential bid on CNN's Crossfire last year, his response was: "Hell f***ing no."