No. 04-1503. Argued September 30, 2004. Decided May 2, 2005. Christopher W. Young (argued), Robert J. Englehart, Washington, DC, Harvey A. Roth, Chicago, IL, for Petitioner. Irving M. Geslewitz (argued), Much, Shelist, Freed, Denenberg, Ament Rubenstein, Chicago, IL, for Respondent. Before ROVNER, WOOD and SYKES, Circuit Judges. ILANA DIAMOND ROVNER, Circuit Judge. The employees of Erie Brush and Manufacturing Corporation ("Erie Brush") voted to accept the Service Employees International Union, Local