Mealey's (February 2, 2018, 2:18 PM EST) -- BOSTON — A now-defunct Patient Protection and Affordable Care Act (ACA) health insurer’s complaints about the law’s risk-adjustment program seek impermissible retroactive rule making or fail to allege that the original rules were arbitrary or capricious, a federal judge in Massachusetts held Jan. 30 (Minuteman Health Inc. v. United States Department of Health and Human Services, et al., No. 16-11570, D. Mass., 2018 U.S. Dist. LEXIS 14727)....