After the Labor split in the 1950s, the Democratic Labor Party successfully establishes itself as a viable party for Catholics and conservative workers. After a merger with right-wing Liberal dissidents in the 70s, the broad-based Christian conservative Democratic Party is formed. The Liberal/Country coalition breaks down as the Democrats encroach on the Liberals' traditional middle-class base. They move to the centre, targeting primarily affluent moderate voters, with the Democrats supplanting them as the major conservative party. Labor dominates among working-class and immigrant voters, while the regions remain primarily a contest between Labor and the Country Party.