More than 2,000 Cook County workers represented by SEIU Local 73 went back to work on Tuesday after an 18-day strike. [Facebook/SEIU Local 73]

Cook County Board President Toni Preckwinkle lashed leaders of the SEIU Local 73 union on Tuesday as they returned to work after an 18-day strike, saying their work stoppage accomplished nothing but to hobble county operations and hurt county leaders’ relationship with one of their largest labor groups.