The figures indicate just 67 percent of the nearly 24,000 SEIU members who work for the state of Oregon now pay dues. That's down from 74 percent last December and nearly 100 percent prior to a June 2018 U.S. Supreme Court ruling that allowed members to stop paying. Freedom Foundation spokesman Aaron Withe says that's proof his group's anti-union campaign is working. SEIU Local 503 executive director Melissa Unger says the union expected the increase in free riders, but overall membership is growing steadily. "Bottom line," Unger says, "we haven't lost any power."