Chip Mitchell, WBEZ, June 29, 2011 Some nurses on Chicago’s Northwest Side have begun two days of voting in a closely watched union election. Since 2002, Council 31 of the American Federation of State, County and Municipal Employees has been trying to organize thousands of employees at Resurrection Health Care, a nonprofit Roman Catholic hospital chain based in Chicago. But management has not recognized the union. To gain a foothold, AFSCME asked the National Labor Relations Board to hold an election among about 290 registered nurses at one of the hospitals, Our Lady of the Resurrection Medical Center, 5645 West Addison Street. ... After