U.S. states sue Trump administration over fuel efficiency rollback

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Nearly two dozen states are suing the trump administration over rollbacks in fuel efficiency standards the standards rolled back were for cars and light duty trucks the administration saying they were no longer needed and had a negative effect on business but a coalition of states and cities says that violates the clean air act the trump administration is really trying to systematically rolled back numerous environmental protections this one may be their most egregious attempt yet that's Washington Attorney General Bob Ferguson who says the rollback would amount to more than two billion metric tons of air

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