Anyone in the United States who thinks the coronavirus lockdown has led to an unconstitutional power-grab by local and state governments can handily point to Michigan and Gov. Gretchen Whitmer as an example of bureaucratic overreach. She’s cracked down on landscaping, gardening, golfing, traveling from one home you own to another, and buying nonessentials like seeds and paint and car seats. (“Life-sustaining” abortion is exempt, of course.) Sheriffs have announced they won’t enforce her overreaching executive orders. She’s said that she’s not going to sign any bill that takes authority away from her. She’s also lobbying hard for Joe Biden’s...