The Parti Québécois is a sovereignist and social democratic provincial political party in Quebec, Canada. The PQ advocates national sovereignty for Quebec involving independence of the province of Quebec from Canada and establishing a sovereign state. The PQ has also promoted the possibility of maintaining a loose political and economic sovereignty-association between Quebec and Canada. The party traditionally has support from the labour movement; however, unlike most other social democratic parties, its ties with organized labour are informal. Members and supporters of the PQ are nicknamed péquistes, a French word derived from the pronunciation of the party's initials in Quebec French.

The Quebec Liberal Party is a provincial political party in Quebec. It has been independent of the federal Liberal Party of Canada since 1955. The QLP has always been associated with the colour red; each of their main opponents in different eras have been generally associated with the colour blue.