The District of Columbia and 23 states, including California, Connecticut, Delaware, New Jersey, New York and Pennsylvania, have sued the Trump administration, alleging that its proposed Safer Affordable Fuel-Efficient Vehicles rule, or SAFE, is misguided.

The lawsuit, filed Wednesday in the U.S. Court of Appeals for the District of Columbia Circuit, challenges the proposed rule, and attorneys general from nearly two dozen states say it should not take effect as written.