Employer associations such as the Business Council of Australia and the Australian Chamber of Commerce and Industry had indicated they supported WorkChoices at the time, figures that ran counter to the 50 per cent of employers cited in a 2007 AC Nielsen poll as opposing the measures. The Australian labour movement, represented by the Australian Council of Trade Unions, ran a very effective media campaign attacking the proposed changes, and alternate models were proposed by the centre-left Australian Labor Party (ALP), who won the subsequent election in a landslide. The Liberal (right-wing) Government at that time used federal funds to produce and air an advertising campaign promoting WorkChoices, a decision that which was criticised by the federal opposition and challenged in the High Court. In addition, the state governments of Australia (all of which were Labor at the time) used the High Court to challenge the legality of the Commonwealth using the Corporations power to sidestep the usual parliamentary oversight and implement WorkChoices, but were ruled against.