Sarnia--Lambton--Bkejwanong

Sarnia--Lambton--Bkejwanong covers all of Lambton County in southwestern Ontario, from the city of Sarnia on the shores of Lake Huron and the St. Clair River south through the agricultural townships of Plympton-Wyoming, Warwick, and Brooke-Alvinston, and east to Petrolia and Oil Springs. Under the 2022 redistribution, the riding was renamed from Sarnia--Lambton to include Bkejwanong, the Anishinaabemowin name for Walpole Island First Nation, meaning "where the waters divide." The riding also encompasses Aamjiwnaang First Nation and Kettle and Stony Point First Nations. With a population of roughly 106,000, it is an industrially significant riding anchored by Chemical Valley, Canada's largest concentration of petrochemical plants.

Candidates

Marilyn Gladu (Conservative) is the incumbent, first elected in 2015 and now serving a fourth consecutive term. A professional engineer, Gladu spent 21 years at Dow Chemical in a variety of local and global roles before becoming engineering manager and then director of engineering at Suncor, followed by consulting work at WorleyParsons. She was named a Fellow of both the Canadian Academy of Engineers and Engineers Canada. In Parliament, Gladu earned a reputation for cross-party collegiality, being named the most collegial MP by Maclean's in 2016.

George Vandenberg (Liberal) is a Sarnia city councillor first elected to council in 2018 and re-elected twice. A former Sarnia police detective, the 70-year-old Bright's Grove resident owns a paralegal service focused on traffic law. He also serves on the Sarnia Police Services Board.

Lo-Anne Chan (NDP) is a local entrepreneur who graduated from the University of Western Ontario with a degree in criminology. She has lived in Sarnia since 2012 and in 2021 launched Jiak, a food business operating out of Mitton Village. In 2014, she founded The LOEY Project, an initiative celebrating youth leaders from Aamjiwnaang First Nation. She received the endorsement of the Sarnia and District Labour Council.

Brian Everaert (People's Party) is a founding member of the PPC who has run in every federal election since the party's creation in 2018. An iron worker and longtime member of Iron Workers Local 700, Everaert has deep family roots in Lambton County.

About the Riding

Chemical Valley defines the riding's economic identity. More than 60 petrochemical facilities operated by companies including Shell, Suncor, NOVA Chemicals, and Imperial Oil line the St. Clair River south of Sarnia, producing fuels, plastics, and industrial chemicals. The sector provides thousands of well-paying jobs and generates enormous export value, but also raises longstanding environmental and health concerns, particularly for Aamjiwnaang First Nation, whose reserve is surrounded by industrial facilities.

The riding has a notable place in Canadian industrial history. Oil Springs, south of Petrolia, is the site of North America's first commercial oil well, drilled in 1858, and the region's petroleum heritage remains a point of local pride. Agriculture -- corn, soybeans, and livestock -- is significant across the county's rural interior.

In 2025, US trade tensions dominated the campaign. The riding's petrochemical sector is deeply integrated with American supply chains, and Enbridge's Line 5 pipeline, which crosses the Straits of Mackinac to deliver western Canadian crude to Sarnia's refineries, faced ongoing legal and political challenges from the state of Michigan. The prospect of retaliatory tariffs disrupting cross-border energy flows was a direct threat to the local economy. Agricultural producers also faced uncertainty as US tariffs on Canadian goods threatened export markets for Lambton County's grain and livestock.