The first wave of summer heat has descended upon Washington, and the denizens of this malarial-swamp-turned-national-capital are sweating. Some of this is due to the weather. Some is due to the fever, which having been induced in the body politic by a rare pathogen known as Donald J Trump, is just entering a new phase: delirium began to set in some time ago; convulsions seem imminent.

In the midst of the turmoil in Washington these days, the appointment of the next US Ambassador to the Holy See might seem insignificant. It has been rumoured for months that the president will name Callista Gingrich to the post, but the appointment has yet to be officially announced. Presumably the White House has more pressing matters to attend to.