The Board of Supervisors has selected Rio District representative David Slutzky as its new chair, replacing Ken Boyd, of the Rivanna District, the county has announced via press release. But the shift is more than geographic—Slutzky is probably the most liberal member of the board, while Boyd is surely the most conservative. With the election of White Hall District’s Anne Mallek in 2007, the BoS became majority-Democratic. (Mallek was named the BoS’ vice chair today.) Slutzky can drive conservative Republicans to distraction, so expect today’s change to lead to some anger and hand-wringing in some quarters of the county.