“St Helens, which to me on the other side of the Pennines would count as being in the ‘Liverpool region’.”
But very much in Woolyback Land. 
Being serious, Reform did finish a distant second in Bootle last time and did do well in St Helens last week. But I don’t see Reform doing well enough to win seats in Liverpool or Bootle. St Helens is a little more detached and has some wards which traditionally voted Conservative until quite recently.