The Liberal government got in on the narrowest of margins due entirely to a series of dodgy preference deals.
Rewrite history much? The Coalition won 90 seats; Labor won 55. It wasn't only most definitively not a narrow margin, it was one of the most decisive elections in recent history. Preferences deals aren't even relevant in the lower house, which is what determines who forms government; preference deals only happen with the Senate, and all the squawking about preferences this election wasn't to do with the coalition; it was to do with the minor parties, who finally got around to exploiting the preferential system the way the major parties have for years, and won a handful of seats, such that they hold the balance of power in the Senate (as long as the Greens vote in a bloc with Labor, which so far, they have).
Above that, they didn't advertise their polices, their entire campaign was based on "hate Labor". The Libs didn't even release a fiscal policy until after the election. Thats how bad they were. Their entire campaign was based on flinging shit at Rudd... Nothing more.
They didn't even need to do that. The Labor party self-destructed - they couldn't even keep the same prime minister for a whole term during the last six years. It was the Rudd-Gillard-Rudd backstabbing powerplay that won the Coalition the election.
Please stop pretending you know anything about the current government in Australia, Australians or anything about Australia in General.
Right back at you buddy.