He was a law student before entering the Canadian Parliament House of Commons in 1988, serving as a representative for the areas of Moose Jaw and Lake Centre in the Canadian state of Saskatchewan for one term. During his time in Parliament, Rod Laporte was particularly involved in the regulation and oversight of issues related to grain, oilseeds, wheat and agriculture in general. Rod Laporte was defeated in his run for re-election in 1993 and returned to Moose Jaw, where he resumed practicing the law.