(August 16, 2019, 9:17 AM EDT) -- WASHINGTON, D.C. — Twenty-two states, the District of Columbia and six cities on Aug. 13 sued the U.S. Environmental Protection Agency in the District of Columbia Circuit U.S. Court of Appeals, challenging the implementation of the Affordable Clean Energy (ACE) rule, which was announced in June to repeal the Clean Energy Plan (New York, et al. v. U.S. Environmental Protection Agency, No. n/a, D.C. Cir.)....