The Tories had a major breakthrough in Quebec, a province where they had been virtually unelectable for almost a century. However, Mulroney's promise of a new deal for Quebec caused the province to swing dramatically to support him. After winning only one seat out of 75 in 1980, the Tories won 58 seats in 1984, more than they had ever won in Quebec before. In many cases, ridings where few living residents had ever been represented by a Tory elected them by margins similar to those the Liberals had scored for years.