Career
He served as mayor of Stony Plain from 2007 to 2012. Lemke then went into provincial politics, and has represented Stony Plain since the 2012 provincial election. Lemke successfully ran for town councillor in 1995.
He held this position for four terms, until deciding to take a run for mayor.
Lemke become mayor of the Town of Stony Plain in 2007, and was acclaimed in 2010. In 2012, with Stony Plain Modern Language Association Fred Lindsay retiring, Lemke ran for the Progressive Conservative (Personal Computer) nomination.