Move over, Smoot and Hawley. President Trump has anointed himself America’s greatest protectionist, and he’s launching a global trade war to prove it. On Wednesday, Trump slapped a minimum 10 percent tariff on all imports, plus additional “reciprocal” tariffs on 60 other countries that have the temerity to sell us things we want to buy. He dubbed it “Liberation Day” to mark the freeing of Americans from the supposedly oppressive burden of trading with others.