Len McCluskey, the head of Britain’s biggest trade union and a key Jeremy Corbyn backer, has been photographed relaxing at a £1,200-a-night hotel in Monte Carlo.

The Unite general secretary and former dock worker was seen drinking wine with friends at the world-famous Le Bar Américain at the five-star Hotel de Paris.

Guides say the bar’s “elegant low-key ambiance” and leather seating has the “air of a 1920s speakeasy fit for the characters of an F. Scott Fitzgerald novel”.