Businessman David Blair will request a recount in the race for Montgomery County executive, after another round of ballot counting on Saturday showed him down 42 votes to incumbent Marc Elrich. There are 34 ballots remaining to be reported, county elections officials said Saturday night. The razor-thin margin in the race means the recount of more than 110,000 ballots would be done at no cost to either candidate. “Given the extremely close margin, we will be requesting a full recount and are hopeful that the outcome will be in our favor,” Blair said in a statement.