CORRECTS TO AROUND 750, INSTEAD OF 800 FILE - Scott Ostrem, center, who was charged with killing three people at a crowded suburban Denver Walmart, sits with his public defenders during a hearing in Adams County, Colo., court on Nov. 3, 2017, in Brighton, Colo. Colorado's public defenders launched a union drive on Thursday, Sept. 1, 2022, over high caseloads and low pay for their staff. The state's around 750 public defender staff members include attorneys, social workers, paralegals, and investigators. (AP Photo/David Zalubowski, Pool)