The Dallas Mavericks owner confirmed that he has corresponded on multiple occasions since the 2016 election with Steve Bannon, President Donald Trump’s former chief strategist.

He downplayed the interactions in an email exchange with The Daily Beast, saying merely that he “texted with him a few time[s]” and that none, he believed, had “been more than one full sentence.” But according to four sources familiar with their conversations, the two have been in touch for months about a possible 2020 bid. Bannon, these sources say, has encouraged Cuban to run and to consider doing so as a Democrat, seeing it as a realistic path to a viable presidential run.

“They talk regularly,” said Sam Nunberg, a former Trump adviser who is close to Bannon. “They’re very similar. They have a lot of synergy there. Even when [Steve] went to work for Trump, Mark would be interviewed and say nice things about Steve.”