Senate Republicans could vote this week to take away California's ability to impose tough limits on car emissions — a move ...

Senate Republicans have voted to establish a new precedent that will allow them to roll back clean air standards in ...

Senate Republicans oppose California's car emissions rules, questioning the EPA's authority and potential nationwide effects.

The U.S. Senate is moving forward with an effort to block California's nation-leading standards for vehicle emissions.

Opinion: NYU law professor Richard Revesz says Congress would be violating the law if they use the Congressional Review Act ...