Nancy Hilsbos, a former coalminer living in the West Virginia county that Senator Joe Manchin calls home, barely noticed the nondescript office block she passed almost daily.
The property, at the top of a rise on the road out of the small city of Fairmont, bears a large sign: “Manchin Professional Building”. Nameplates announce the offices of accountants, financial advisers and insurers. But there is no mention of the most profitable and influential company registered at the address – the Democratic senator’s own firm, Enersystems.