The winner of the race will replace Rep. Anne-Marie Mastraccio, who is termed out of office.

The candidates differ on issues ranging from childhood vaccination to climate action in the race to represent Gorham, Buxton and part of Scarborough.

East District incumbent Brett Jones faces challenger Harrison Deah, and Mark Morrison and Bob Muir will square off for the at large seat.

Tammy Walter, R-Cape Elizabeth, is challenging state Rep. Christopher Kessler, D-South Portland.

Key areas of debate include Scarborough's significant residential growth and its effect on public services, schools and infrastructure.

Former Cumberland County District Attorney Stephanie Anderson, a Republican, faces state Rep. Anne Carney, a Democrat, in the Senate District 29 race.

The race includes longtime councilors Maura Herlihy and Joseph Hanslip and two political newcomers.

All 3 candidates have been elected to local office in Sanford, and are now looking to lead the city.

Republican Jay Finegan and Democrat Melanie Sachs seek to fill the post being vacated by outgoing House Speaker Sara Gideon.

Donna Bailey and Craig Pendleton are looking to fill the seat being vacated by Sen. Justin Chenette.

Three-term Sen. Susan Deschambault and former state Rep. Robert Daigle are running to represent the district that includes Biddeford and 5 surrounding towns.

Democrat Poppy Arford and Green Independent Fred Horch are competing for the seat currently held by Matthea Daughtry.

Democratic incumbent Shawn Babine is facing Republican Annalee Rosenblatt and Independent Sophia Warren.

Democrat Kyle Bailey faces Republican Roger E. Densmore III to represent the district that covers parts of Gorham and Scarborough.

Democrat Bill Diamond of Windham has served a combined nine terms in both houses of the legislature, but political newcomer, Republican Karen Lockwood of Raymond, is looking to unseat him in the Senate District 26 race this November.

The race features Aura Russell-Bedder, a social worker and Presumpscot parent, and Chris Vail, a firefighter and Lyseth parent.

Michael Pardue and Joseph Rafferty are running in Maine Senate District 34.

Business owner Traci Gere is running against longtime lawmaker Stedman Seavey.

Chris Babbidge is being challenged by Todd DiFede in Maine House District 8, which covers part of Kennebunk.

The race features Anthony Emerson, a cashier and recent USM graduate; and Jeffrey Irish, a supervisor in the Maine Department of Health and Human Services.

Grayson Lookner, who won the Democratic primary, is being challenged by Green Independent John Safarik, who is mounting a write-in campaign.

Andrew Zarro, a progressive small business owner, faces Rosemary Mahoney, a longtime Portland resident and union organizer who ran unsuccessfully in 2014.

Two who have never held elective office, Kathryn Sykes and Kenneth Capron, are competing against 2 experienced candidates, John Coyne and Mark Dion, for the open seat representing Riverton, North Deering and Deering Center.

Incumbents Mary House and Heather Johnson are not seeking re-election.

Experienced incumbent Claude Morgan faces political newcomer Jocelyn Leighton in citywide election.

The seats are being vacated by Valerie Adams and Christopher Straw, who have both declined to run for re-election.

They are seeking seats vacated by board members Hope Straw and Nasir Shir, who have both declined to seek re-election.

Democrat Ralph Tucker is running against Republican Michael Lawler.

Matthea Daughtry and Brad Pattershall are vying for the Senate 24 seat held by Everett 'Brownie' Carson, who is not running for re-election.

Republican Jennifer White of Gray is facing off against Democrat Cathy Breen, who is seeking her fourth term in the Maine Senate.

Independent Pat Scully is challenging Republican incumbent Rich Cebra for the House District 68 seat.

Independent Pat Scully is challenging Republican incumbent Rich Cebra for the House District 68 seat.

The incumbent Democrat is being challenged by Republican Susan Abercrombie and Green/Independent Carolyn Silvius for his third term representing East Deering in the statehouse.

Rep. Joyce "Jay" McCreight, D-Harpswell, faces a challenge from Republican Steve "Bubba" Davis.

Republican Anne Fleming and Democrat Art Bell are competing for the seat currently occupied by Janice Cooper.

Rick Bennett, who previously served in both houses of the Legislature, faces Katey Branch, a business owner and community educator, in the November election.

Rep. Denise Tepler, D-Topsham, faces a challenge from Republican Toni Bashinsky.

Rep. Steve Moriarty, D-Cumberland, faces a challenge from Mike Timmons, House 45 representative from 2014-2016.