Portland police return to using tear gas during protests Wednesday nightBy Sergio Olmos (OPB)Portland, Ore. Aug. 6, 2020 1:57 p.m.The mayor say the use of gas was warranted, because officers feared for their lives. 📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up