These are snipish little comments from the "wags" of the House, in-jokes relating to past scandals, personal comments or just vaguely apposite harrumphing.
Too much of the second half is consumed by the nocturnal niceties of a drug plot a pity, because a film about the joys and travails of the American military abroad could hardly be more apposite.
Some will say stable doors and horses come to mind: it might have been more apposite if this had happened before the Great Crash of 2008, which wreaked so much havoc on the British economy in part because our banks had so little capital back then.