Thanks to Tom for his very helpful comment my previous post about the by-election upset that saw me take second place in the Harpenden South district council results.
I make that a 19.5% swing from Conservative to Labour. Replicated across the country, that would give a Labour *majority* of 443, and leave the Tories with just nine MPs. Depressingly, Christopher Chope would still be one of them.
We can dream.