Is it time for the Democrats to admit Bernie Sanders is their best hope against Trump?

Citing the opinion of Kevin, the chap who installed our woodstove, may not meet the exacting standards of polling organisations like Gallup or Quinnipiac University. But the views of one blue collar New England voter are nevertheless interesting.

In 2008 he backed John McCain; in 2012, he didn’t even vote. Given the choices on offer this time round, he would plump for Bernie Sanders.

This may be the flimsiest straw in the wind, but it is confirming what a raft of polls is showing: in a straight fight with Donald Trump, Bernie Sanders is performing far better than Mrs Clinton.

That West Virginia exit poll was an eye-opener.