The referendum failed in Sedgwick County, leaving Sumner County as the area's only possible casino site. This requirement was waived for Sumner County because it had passed an advisory measure in favor of casino gaming in 2005. The law required a local referendum in each county before a casino could be approved. One of the casinos was allocated to the Wichita area ( Sedgwick and Sumner Counties). In 2007, the state enacted the Kansas Expanded Lottery Act, which included authorization for four casinos to be built and managed by private developers, under contract with the Kansas Lottery. The resort includes the Kansas Star Arena, a multipurpose entertainment venue that hosts concerts, pageants, and various athletic and equestrian events. It is located on the west side of the I-35 ( Kansas Turnpike). The Kansas Star Casino is a casino and hotel in western Mulvane, Kansas, United States, owned and managed by Boyd Gaming. Casino and hotel in Mulvane, Kansas Kansas Star Casino