Memorial Day logistics: Portsmouth is planning a “rare” Memorial Day/250th Commemorative Parade Monday at 1 p.m., with a route that includes a wreath-laying stop at the Logan’s Orders monument; city facilities will close and there’s no trash/recycling pickup, while the USS Albacore ceremony is set for 10 a.m. Maine politics: Gov. Janet Mills’ Senate campaign is officially off, but her name still appears on the June ballot unless she files written withdrawal; meanwhile, Democratic Senate nominee Graham Platner says a Red Sox private-equity ad was pulled mid-game. Campaign firestorm: Platner also faced fresh scrutiny for refusing to apologize to a Purple Heart recipient over a deleted post mocking a wounded soldier. Housing crunch: A Massachusetts ADU law is producing uneven results, with Maine-based builders saying permitting “soft costs” can add $30,000+ and slow scaling. Education tech: UMaine System is rolling out system-wide ChatGPT Edu access starting July 1.