Jack is serving his third term as the member of the Legislative Assembly representing Peace River South, located in rural northeastern British Columbia, and is the longest sitting member on the opposition benches in the Legislative Assembly.

First elected to the Legislature in 1986, Jack served in government as the Minister of State for the Northeast and Nechako, Minister of Energy, Mines and Petroleum Resources, and British Columbia's first Minister of Native Affairs. Re-elected in 1991, Jack was then elected Leader of the Third Party, and now sits as an Independent MLA.

Born in Alberta, Jack attended Edmonton's Northern Alberta Institute of Technology. Employed as an Imperial Oil auditor from 1962 to 1964, he later worked for General Motors and operated an automobile dealership until 1981.

Community service and appointments included: Dawson Creek Rotary Club President, Dawson Creek and District Fall Fair Director and Chairman, and Regional Economic Development Commissioner. Jack enjoys many outdoor activities, including hiking, downhill skiing, fishing, hunting and canoeing, and is an avid reader. He and his wife, Judy, have two grown daughters, Joanne and Pamela.