It is not an artful photograph but the image is all the more potent for its simplicity. In the aftermath of the Grenfell Tower disaster, Jeremy Corbyn visited the survivors and was pictured hugging a man in a red baseball cap. Corbyn clasps the man tight, eyes closed; there is a sincerity there, a concern for human suffering that transcends the politics of photo ops.

The informality is subtly striking. Twenty years on from the Diana moment, public expressions of grief are commonplace, but the embrace of an apparent stranger and the unselfconscious intimacy between men from more reserved times carries special meaning.