Mealey's (April 12, 2022, 4:17 PM EDT) -- COLUMBUS, Ohio — Ohio and Tennessee on April 4 appealed to the Sixth Circuit U.S. Court of Appeals an Ohio federal judge’s March 23 order denying summary judgment on their challenge of the 2015 Clean Water Rule and his dismissal of the states’ seven-year-old lawsuit as moot in light of changed circumstances....