Democratic presidential front-runner Hillary Clinton is heading to coal country next week, with a tour through Appalachia that will include Ohio, West Virginia and Kentucky.

The last time she was in Ohio she managed to stir up opposition by boasting more coal miners would lose their jobs if she won the White House. She was forced to backtrack her comments, including in a letter to Sen. Joe Manchin, a Democrat from West Virginia who was outraged by the comments.