Not everyone appreciates the extent to which the Democrats pushing Joe Biden for president are students of Samuel Taylor Coleridge.

For those of you who think low, let me say straight away that I am not thinking of Coleridge’s penchant for laudanum. No, I am thinking of that other goad to fantasy, Coleridge’s idea, articulated in his book Biographia Literaria (1817), of ‘the willing suspension of disbelief’.