In this time of political upheaval, with Macron's camp weaker than ever and his pretenders poised, dagger in hand like actors of a Roman tragedy, ready to deal the final blow, the French president's last remaining loyalists are indulging in a bout of nostalgia. One of their favourite haunts in which they can hark back to the glory days of Emmanuel Macron's rise to power in 2017 is the 1919, a secret bar which has the feel of a prohibition-era speakeasy.

At first sight, nothing suggests the presence