LOL, Sebastian Mallaby gives basic and valid reasons Krugman has given for his partisan positions, then Mallaby dismisses them all by saying Krugman is a victim of Trump Derangement Syndrome, a fiction created by conservatives to cover all criticism of Trump. Trump uses "fake news". You and other conservatives use your TDS fiction.
What Mallaby should have done at the end is he should have repeated
"Krugman is substantively correct on just about every topic he addresses."