The Parti PRO des Lavallois, formerly known as the Parti Ralliement Officiel des Lavallois (PRO Laval), is a municipal political party in Laval, Quebec.[1] It is led by Gilles Vaillancourt, who has been the city's mayor since 1989.
The Parti PRO was founded in the early 1980s by a group of councillors who resigned from the city's governing alliance. It was originally progressive but later shifted to a more pro-business position. Party co-founder Ronald Bussey resigned from the group in 1984, charging that it had become dominated by businessmen and former opponents.[2]
The dominant municipal party in Laval for several years, the Parti PRO has won every council seat in each municipal election since 2001.[3]