On February 3, 2014, the American Civil Liberties Union (ACLU) and the law firm of Mayer Brown filed a lawsuit in U.S. District Court for the Western District of Wisconsin on behalf of four same-sex couples, including a lesbian couple married in Minnesota in 2013. It challenged the State Constitution's denial of marriage rights to same-sex couples and the state statute that provides criminal penalties for leaving the state to establish a marriage that is not valid in Wisconsin. The suit named Governor Scott Walker, several state officials, and two county clerks as defendants.