The Ridgefield League of Women Voters is sponsoring a debate between Republican State Sen. Toni Boucher and the Democratic challenger for the 26th District seat, Phil Sharlach. It will take place Thursday, Oct. 2, 6:30 to 8:30 p.m., at Ridgefield Library, 472 Main Street. Candidates from the 111th Legislative District and 138th Legislative District will also participate in the event. Audience members may submit questions for the candidates on notecards that will be provided. The forum is free and open to the public.