JACKSON HOLE, Wyo. (AP) — The candidates vying to fill Wyoming's sole seat in the U.S. House of Representatives are united in opposing the Environmental Protection Agency's plans for coal.

Candidates say limiting EPA powers and repealing the Clean Power Plan are key to the future of Wyoming, the nation's largest coal producer. For voters, the question may be who will be able to turn rhetoric into action.

According to a study conducted by the Center for Energy Economics and Public Policy in 2015, coal generates 14 percent of Wyoming's gross state product and provides $1.3 billion, or 11 percent, of all revenue collected by the state. Since 2008, state revenue from coal has dropped 17 percent.