EPA keeps car-emission rules to 2025; what happens under Trump?

Chrome exhaust pipeTwo days ago, the U.S. Environmental Protection Agency issued a ruling that existing limits on tailpipe emissions of carbon dioxide for 2022 through 2025 should remain in place. The EPA's carbon limits correspond exactly to NHTSA standards for corporate average fuel economy, and the EPA decision was widely (if incorrectly) reported to be about...