NORWALK — Democratic incumbent Bob Duff and Republican challenger Greg Ehlers will square off during a 25th State Senate District debate sponsored by the League of Women Voters of Norwalk at City Hall next week.

“Each candidate will be asked a series of questions prepared by the league’s Voter Services Committee,” said Mary Oster, committee member. “Then they’ll answer questions from the audience and each have a two-minute prepared closing.”

The debate is scheduled for 7 to 8 p.m. Oct. 20 in the Community Room of City Hall, 125 East Ave.

A 137th State House District debate between Democratic incumbent Christopher R. Perone and Republican challenger Darline Perpignan will follow from 8:15 to 9 p.m. at the same location.

“It’s important for voters to be informed and educated so that when they go to the polls they will have a good sense where each candidate stands on the issues,” Oster said.

Jean Rabinow, a member of the LWV of the Bridgeport Area, will moderate the debates, which are free and open to the public.

Duff, a Norwalk resident and real estate broker, is running for his seventh term representing the 25th District. Senate majority leader since 2015, he chairs the Executive and Legislative Nominations Committee, and co-chairs the Legislative Management Committee.

Ehlers, a Darien resident and small businessman, is running for his first term representing the district, which includes Norwalk and part of Darien.

Perone, a former Norwalk councilman, is running for his seventh term representing the 137th District, which includes part of Norwalk. He chairs the Commerce Committee.

Perpignan emigrated with her mother and sister from Haiti to Connecticut at age 12. She has worked as a motivational speaker, youth advocate, women’s activist and outreach specialist. Last fall, she ran unsuccessfully for a District A seat on the Norwalk Common Council.

U.S. Rep. Jim Himes, D-Conn., and Republican challenger John Shaban will square off twice in back-to-back debates later this month.

The first debate, sponsored by the LWV of Norwalk and 11 other Fairfield County league chapters, is from 5 to 6:30 p.m. Oct. 23 at the Clune Performing Arts Center at Wilton High School, 395 Danbury Road/Route 7, Wilton.

“The questions are going to come from the audience. They will be in writing,” said debate facilitator Jara Burnett, of the LWV of Greenwich. “They will be on index cards and they will be screened by a bipartisan committee of league members for relevance.”

Stamford’s Kay Maxwell, a former president of the League of Women Voters of the United States and executive director of the Stamford-based World Affairs Forum, will moderate.

It will be possible to register to vote and get absentee ballot information prior to the event.

Himes and Shaban will face off again in a “Congressional Debate on Foreign Policy,” which is from 7 to 8:30 p.m. Oct. 24 in the University of Connecticut Stamford Genre Auditorium, 1 University Place, Stamford.

The World Affairs Forum, Moffly Media Inc. and the Lukaj Foundation are co-sponsoring the debate, which is free to the public.

Himes, a Greenwich resident and former banker, is running for a fifth term representing the 4th Congressional District. He is a member of the House Committee on Financial Services and serves as ranking member of the NSA and Cybersecurity Subcommittee of the House Permanent Select Committee on Intelligence.

Shaban, a Redding resident and attorney, has represented the 135th State House District since 2010. He is Republican leader of the Environment Committee, and a member of the Judiciary Committee ,as well as the Finance, Revenue and Bonding Committee.

The 4th Congressional District covers Bridgeport, Darien, Easton, Fairfield, Greenwich, Monroe, New Canaan, Norwalk, Oxford, Redding, Ridgefield, Shelton, Stamford, Trumbull, Weston, Westport and Wilton.