PORTLAND, OR — In what officials are calling a “deeply concerning and potentially irreversible shift,” Portland police warned Friday that fully enforcing existing laws could lead to suspects remaining in jail for an entire afternoon, marking a dramatic departure from the city’s long-standing catch-and-release rhythm. “This is exactly the kind of slippery slope we’ve been trying to avoid,” said one visibly uneasy officer, staring out over a downtown block he confirmed he’d already responded to...