The poll, provided exclusively to Business Insider, found Cuban beating Trump by a 47% to 44% spread. A Democrat has not won a presidential election in Texas since former President Jimmy Carter in 1976.

Cuban, the owner of the NBA’s Dallas Mavericks, made a name for himself in Texas both in business and as an outspoken owner of one of the state’s three NBA franchises. He’s teased a run for 2020 throughout most of 2017, but has hinted that he would be more likely to run as a Republican candidate than as a Democrat, even though he backed 2016 Democratic presidential nominee Hillary Clinton during the general election campaign.