Imagine for a moment that you are Mr Seth Wilbur Moulton. It is no great hardship. Scholars who follow these things rank you in the top decile of US congressional members for bipartisan conduct.

You have the patriotic bona fides of a man who gave his best years to the Marine Corps. You have medals of valour that it took an investigative journalist to make public. Cosmic luck gave you an expensive education and the looks of a beau ideal American president from a moreish, if middlebrow, Netflix series.