WASHINGTON—The GOP-led Senate voted Thursday to take away California’s ability to set its own tailpipe emissions standards, ...

Legal experts say Congress misused a federal law to do so, potentially “opening up a Pandora’s box it cannot close.” ...

The Republican-majority Senate's decision to revoke California's planned ban on vehicles that run on fossil fuels defies ...

Senate Republicans led the push to block California's ability to impose tough limits on car emissions — a move Democrats call ...

Congress disapproved the U.S. Environmental Protection Agency waivers given to California for that state’s recent zero- and ...

Trucking groups call it common sense. California and clean-air advocates call it unconstitutional. Here's what just happened to California's emissions rules — and what's next.