MADISON, Wis. — Of all the national casualties expected from the Obama administration’s “War on Coal,” manufacturers in Wisconsin’s 6th Congressional District could be hit the hardest. That’s the finding of a new analysis, published by the conservative Heritage Foundation, that tracks the long-term economic impact of the Environmental Protection Agency’s proposed limits on carbon dioxide emissions — strict standards that, industry officials assert, would all but kill construction of new coal-fired power plants and force existing facilities into early retirement. Energy expert Nicolas Loris analyzed the effects of a 20-year phase-out of coal. His study projects significant job loss...