I actually thought Labour would win this by a bit more - doesn't point to these 'swingy' ex-marginals swinging hard back to Labour. If the swing in the national polls does indeed come to pass, we may well need to get used to a very unfamiliar looking map.
I think they'll take a 23% swing lol
My point was not to do down the Labour performance (not at all! It is clearly a spectacular result) - it was purely about the way a large Labour swing in a general election will present itself. It may be that the shifts we saw in 2019 are more permanent than many expected.
There's always a floor for each party meaning hig swimgs won't be uniform, and i expect that Brexit voters have changed what the Tory foor is in certain former Labour safe seats or marginals. Is that what you're getting at?