William McCormack Labor Arthur Edward MooreHis main opponent was the Country and Progressive National Party (CPNP), led by Arthur Edward Moore.The term had not gone well for McCormack's government, including a railway lock-out in 1927 which pitted the Labor Party against the union movement, restrictive financial policies and attempts to sell off state-owned enterprises, as well as suggestions of corruption which later came to be known as the Mungana affair.The election resulted in the defeat of the McCormack government in a landslide, and the first non-Labor ministry since 1915.The CPNP found itself in power as the Great Depression took hold.