Labour candidate Ashley Dalton odds-on favourite to hold seat after resignation of Rosie Cooper
Polls have closed in the West Lancashire byelection, with Labour confident of retaining the seat it has held since 1992.
The bookies made that the party is 1/25 to keep hold of the seat where it had a majority of 8,336 in the last election. A result is expected between 2am and 4am.
