In my piece about the contest, I asked what was the point if Mr Smith ended up offering more or less the same policies as Mr Corbyn? The answer from the Owen Smith campaign is he can win an election to carry them out, whereas Mr Corbyn cannot.
Today a poll is published (BMG Research). It says 9% of the public would be far more likely to vote Labour if Mr Corbyn wins, and 10% a little more likely. For Mr Smith just 5% would be far more likely, and 13% a little more likely. Mr Smith has some way to go to prove his point.