Antivirus software pioneer. One-time fugitive. Cryptocurrency evangelist. And now US presidential candidate for 2020. John McAfee sure knows how to make a splash.

McAfee announced his candidacy on Sunday and tied it to his current role in promoting cryptocurrencies. "I believe this will best serve the crypto community by providing the ultimate campaign platform for us," he said.

This isn't McAfee's first presidential rodeo. He also ran during the 2016 election cycle as a Libertarian Party candidate, though he lost the party's nomination to former New Mexico governor Gary Johnson. 

"If asked again by the Libertarian party, I will run with them. If not, I will create my own party," McAfee said in his tweet.

McAfee seems to have realistic expectations for his current presidential run, tweeting, "Don't think that I have a chance of winning. I do not. But what truly changes America is not the president, but the process of creating one."