CASPER, Wyo. (AP) — The U.S. Supreme Court has invited the acting solicitor general to weigh in on a request by Wyoming and Montana for the court to rule on a proposed coal export terminal in Washington state. Wyoming Gov. Mark Gordon says the request for the federal government’s position is an “encouraging” sign the court might yet rule on the case filed in January. The Western coal-mining states want to export more coal overseas to offset a steep decline in U.S. demand for coal to fire power plants. The states object to Washington state’s rejection of an environmental permit for the proposed dock on the Columbia River.