Cook County’s chief judge sued the county board president and treasurer in an effort to block budget cuts and layoffs for the next fiscal year.The $5.2 billion budget, unanimously approved by the Cook County Board of Commissioners late last month, is expected to cut 161 circuit court employees in fiscal year 2018.In a lawsuit filed in Cook County Circuit Court Thursday, Chief Judge Timothy C. Evans petitioned for the court to enforce an administrative order Evans put in place that would stop the layoffs and &ldquo …