Ray was first elected to the House of Commons as a Conservative Party of Canada Member of Parliament on October 14, 2008. He represents the riding of Palliser, which is located in the Province of Saskatchewan and includes the city of Moose Jaw, part of Regina, and several rural communities.
In Parliament, Ray is currently sitting as a member of the Standing Committee on Aboriginal Affairs and Northern Development. Ray is also a member of the Canadian NATO Parliamentary Association, the Canada-Europe Parliamentary Association, the Canada-United States Inter-Parliamentary Group, the Post-Secondary Education Caucus, and the Steel Caucus. He previously served as Chair of Saskatchewan Regional Caucus and he also has served as a Member of the Standing Committee on National Defence.