States back McKinsey bid to dismiss local governments' opioid cases


(Reuters) - Eleven states on Monday argued that cities and counties nationally were trying to "usurp" their authority by suing McKinsey & Co Inc for turbocharging the U.S. opioid epidemic, after McKinsey already agreed last year to settle with every U.S. state for $642 million.

A coalition of states led by Ohio Attorney General Dave Yost filed a brief in San Francisco federal court backing the consulting firm's contention that local governments were barred from suing it separately over the settled claims.