The president wants half of the vehicles sold in the United States to be electric by 2030, hoping to phase out gasoline-powered engines that contribute to climate change.
The president wants to use pollution rules to rapidly lift sales, but there are hurdles ahead.
As vice president, Joe Biden oversaw a “green jobs” stimulus package that produced notable failures. This time, with more money and more demand for clean technology, will be different, Democrats say.
General Motors said it would no longer back President Trump’s effort to strip California of the power to set fuel economy standards.
