Monochromatic Clothing Troll
Excellent research! What would we do without you?Hardly an expert on this subject but here are some thoughts:
Well there were many politicians who use/used French tailors. Today it would certainly be hard wearing British bespoke and running for office, but this is also probably the case in the UK and the rest of the world. Wearing any bespoke today probably isn't advisable. Today François Fillon still wears Arnys bespoke, but most probably wear industrial mtm (from french brands made in italy) or RTW.
But why did some French politicians prefer British tailors. Well for most of the 20th century serious men's dress was dominated by le style anglais. The Brits invented it and they had the most famous tailors (and best tissue). It was a style that was sober, dignified and elegant. The French were hardly the only ones enamoured with it. Even today certain Nothern Italian noble familys are still dressed by Poole. But for the most part those days are over.
Also worth noting is that both Poole and Caraceni (the two foreign tailors mentioned above) had outposts in Paris at one time (like Cifo who were originally a Roman based tailor). Even though both of their Paris outposts closed they had a long history of serving French clients right up until this day. Anyway Camps was Spanish and De Luca was italian. France has always been traditionally been a mecca for female style and fashion. The french bespoke style which we now associate with Africans and Middle Easteners was always probably always looked at as a more showbiz and more flash style than Savile Row. The price had nothing to do with politicians not wearing it.
One French tailor rarely mentioned which probably dressed more french politicians than any other (including de Gaulle) Stark and Sons, was known as the "tailleur de la Republic", has an english name and an english style, no funny shoulders or fish mouths, strict british style bespoke. The business was recently bought by Camps after the third generation died.