Career
He replaced Gary Robichaud as leader. Constable previously was the theatre stage manager for the Charlottetown Festival. Constable was elected the leader of the Island New Democrats on April 23, 2006 by a narrow margin over labour leader Mike DesRoches.
Constable"s leadership appeared to be welcomed by Islanders as early polls reported the NDP"s support had risen from four to eight per central
He contested the seat of Charlottetown-Victoria Park in the 2007 provincial election. In June 2006, Constable criticized the Binns government for gerrymandering the new electoral riding map to divide the province in an east versus west conflict.
Constable said it would only draw attention away from "important" issues like health care and education. He expressed support for the map introduced by Justice John A. McQuaid in 2004.
Constable announced his resignation from the leadership of the party on August 26, 2007, citing personal reasons.