gun control foreign aid social programs ref name polls ref federal level canada dominated two relatively centrist parties practising brokerage politics ref ref name courtneysmith ref ref name brooks ref ref name smith ref ref name johnson c ref centre left leaning liberal party canada centre right leaning conservative party canada predecessors ref name baumergold ref traditional ''brokerage'' model canadian politics leaves little room ideology canadian catch party system requires support broad spectrum voters ref name marlandgiasson ref name smith ref name johnson c ref name brooks historically predominant liberals position centre political scale conservatives sitting
Social science Political science Canadian politics