ACTUALLY, IF YOU LOOK UP KRUGMAN’S WRITINGS ON TRADE FROM THE 1980S YOU CAN DO KRUGMAN VS. KRUGMAN: Krugman vs. Trump on tariffs. Krugman was pretty protectionist by comparison with many mainstream economists then, which won him the admiration of a whole school of anti-deindustrialization “industrial policy” Democrats who espoused policies that looked somewhat Trumpian. But that makes sense, when you remember that Trump is more or less a 1970s Rust Belt Democrat.