Congress has declined to pass the so called "card check" legislation, which would make it easier for labor unions to organize workers. Nevertheless, the National Mediation Board has promulgated rules that would accomplish the same result. On September 23, 2010, the Senate rejected a motion to proceed to consider a resolution of disapproval of the NMB action. ACU supported this effort to check a runaway Executive Branch Agency, but the effort failed by a vote of 43- 56.