Trump-era U.S. aluminum tariffs have backfired, driving up costs, reducing domestic production, diverting Canadian supply and leaving the country vulnerable to global disruptions like the Iran war. https://www.japantimes.co.jp/commentary/2026/03/31/aluminum-worlds-dumbest-tariff/?utm_medium=Social&utm_source=mastodon #commentary #aluminumtariffs #trade #globaleconomy #useconomy #us #donaldtrump