Through 2010, the party improved its vote in the Tasmanian and South Australian state elections and achieved state government in Victoria. In March 2011, the New South Wales Liberal-National Coalition led by Barry O'Farrell won government with the largest election victory in post-war Australian history at the State Election. In Queensland, the Liberal and National parties merged in 2008 to form the new Liberal National Party of Queensland (registered as the Queensland Division of the Liberal Party of Australia). In March 2012, the new party achieved Government in an historic landslide, led by former Brisbane Lord Mayor, Campbell Newman.
In March 2012, which party won by an historic landslide?
the new Liberal National Party of Queensland