With Montgomery County elections officials gearing for a recount in the race for county executive, incumbent Marc Elrich expressed confidence that his win over fellow Democrat David Blair will hold. In an interview, Elrich said he’s looking forward to tackling the county’s challenges — and working with an almost all-new county council — in his second term. Following a lengthy vote count, Elrich outperformed Blair by 35 votes in the July 19 primary. The 0.03% margin between the two men — 55,497 votes for Elrich; 55,462 for Blair — fell well within the 0.25% threshold set by state law for a free recount. Blair, as expected, filed a formal petition on Tuesday for a full manual recount of all votes cast.