NEW YORK (AP) — Uncertainty over tariffs and an unpredictable trade war is weighing heavily on companies as they report their latest financial results and try to give investors financial forecasts. Some tariffs remain in place against key U. S. trading partners, but others have been postponed to give nations time to negotiate. The tariff and trade picture has been shifting for months, sometimes changing drastically on a daily basis. Those shifts make it difficult for companies and investors...