Long after he fired missiles at Syria (2017) and slew an Iranian general in a third country (2020), peers of mine were still using the i-word about him. His own people did too, although more as a compliment. JD Vance once cited “not starting any wars” as a reason to endorse him. This chattiest of vice-presidents seems tongue-tied of late. The Iran war has finished off the idea that his boss ever wanted America to be a hermit republic, but it should not have been needed.