Off-topic pedantic point. Ro_gu_e is an adjective that means without guidance or lacking oversight. Ro_ug_e is a type of cosmetic, namely one for making the cheeks redder. While the image of a red-faced prosecutor screaming at his clerks is amusing, I don't think it's what you had in mind.

Sorry to distract from your otherwise valid comment.

Completely relevant point, I would say: I assumed ‘rouge’ meant ‘red’ in that context, a.k.a. presumed socialo-communist, a.k.a. a prosecutor trying to redress economic and political injustices, going after the rich and powerful and ignoring petty crimes, like several prosecutors have been accused of doing in France and Italy. That made the original common odd.