In another attempt to revive a nurse ratio staffing bill, a group representing D.C. nurses submitted a report to city officials Monday listing 215 instances when they say patients were endangered due to understaffing in District hospitals. National Nurses United, a national union that has partnered with a D.C. nurses union, is pushing for mandated nurse ratios and trying to get the D.C. Council's Committee on Health to bring a bill out of committee that would create one. They also rallied in front of the John A. Wilson Building on Monday morning. The bill was first introduced in D.C. in February 2013.