GM Plant Closures Point To Muddled Politics Of Auto GHG Rule Rollback

General Motors' recent plans to idle several auto assembly plants in Michigan, Ohio and elsewhere appears to be muddying the Trump administration's hope for a political victory from its roll back of vehicle fuel economy and greenhouse gas rules, even as GM cited market trends that industry has long argued require eased standards. The plant closures -- and the associated 14,000 job losses -- come amid automaker heartburn over Trump administration tariff fights over steel and aluminum as well as...