James Harden and many others in the Rockets' org. all want OUT of Houston ... and it's all reportedly because the team's owner is a big Donald Trump supporter.
NBA insider Ric Bucher dropped the bombshell revelation on "The Odd Couple" podcast this week ... saying Tillman Fertitta's ties to the Republican party and Trump have created a massive divide in the org.
According to Bucher ... players and staffers have disagreed so heavily with Tillman's donations to the Trump campaign -- it's created a straight-up a "revolt.