He received 1,315 votes (3.67%) in the 2003 Provincial election, finishing fourth against the future Liberal Finance Minister and Minister of Energy Dwight Duncan. In the 38th General 2004 federal election, Holt was the campaign manager for the two Windsor Green Party candidates, Elizabeth Powles (Windsor - Tecumseh, 1613 votes, 3.6%) and Rob Spring (Windsor West, 1545 votes, 3.49%) (Elections Canada). In the 39th General Election of 2006, Holt was campaign Manager for Catherine Pluard in Windsor Tecumseh (1644 votes, 3.23%)