Hamas won the 2006 municipal elections in Qalqiliya and one of its members , Wajih Qawas , became mayor .
Wajih Qawas was incarcerated by Israel for much of Wajih Qawas ' term .
Hamas won the 2006 municipal elections in Qalqiliya and one of its members , Wajih Qawas , became mayor , although he was incarcerated by Israel for much of his term .