It’s the biggest organizing wave the U.S. labor movement has seen in decades. Graduate workers are unionizing in huge numbers, winning drive after drive with 90 percent support or more. What’s more, the workers are in the driver’s seat of these campaigns, with little help from union staff. Most union organizing these days relies on a staff-heavy approach that’s tough to scale up. But the grad worker upsurge offers a sketch of a worker-led model that could help reverse labor’s decline.