( February 27, 2026, 1:07 PM EST) -- WASHINGTON, D.C. — As promised, to bolster a proclamation that exempted nearly one-third of the country’s coal-fired power plants from the U.S. Environmental Protection Agency’s 2024 Mercury and Air Toxics Standards (MATS) Rule, the agency repealed portions of the rule, and the United States filed a notice of the action in District of Columbia federal court as it pertains to a lawsuit over the proclamation brought by several environmental nonprofits against the agency and President Donald J. Trump that the government contends is now moot and should be dismissed....