Susan Klimek Buckley (D), who is running for Sugarland Run Supervisor, watches a television for election night results at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post

Democratic supporters stare at a television for election night results at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post

Democratic supporters stare at a television for election night results at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post

Democratic supporter Peggy Luther of Sterling stares at a television for election night results at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post

Tom Simmons of Waterford talks with Andrea McGimsey (D), who won the race for Potomac Supervisor, at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post

Michael George (D), center, who lost his bid for sheriff to incumbent Steve Simpson, chats with supporters as he waits for election results at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post

Del. David Poisson (D) waits for election night results with his wife, Laura, at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post

Andrea McGimsey (D), left, who won the race for Potomac Supervisor, stands with her fiance, Douglas Greenwood, and Susan Klimek Buckley (D), who won the race for Sugarland Run Supervisor, as the candidates wait for election night results at a post-election party at O'Faolains Irish Restaurant and Pub in Sterling.

Photo: Ricky Carioti, Washington Post