From the Blackpool South count hallpublished at 00:53 British Summer Time 3 May
Ellis Palmer
Political reporter, BBC Lancashire
There are three big themes that are being raised with me as I wheel around the count hall.
Firstly, Labour are confident of a win here, but will it be a thumping majority that sends a clear signal that Conservative 2019 gains in the north of England? Although people are discontented with the Conservatives in Westminster, they also feel that the Labour-run local council could be doing more to improve the town.
Secondly, for Reform - could it be their best by-election result since rebranding from being the Brexit Party? Their highest share at a by-election since they changed their name is 13% in Wellingborough. Could they beat the Conservatives into second place?
What could a heavy defeat mean for the Conservative government? Firstly, what message could coming second to Reform send to the governing party's right flank? Secondly, if it's a heavy defeat to Labour, what message does this send out in Labour-facing marginals and in the so-Red Wall of Boris Johnson-era gains?