PollCheck, a poll-aggregation projection model, extended its Reform UK council-control forecast from three rural counties to five on 13 April, adding Sunderland and Wakefield metropolitan boroughs to the existing Essex, Norfolk and Suffolk projection.1 Reform is now projected to win 38 of 63 seats in Wakefield and to take Sunderland outright; Labour is projected to lose both, alongside Wigan and Barnsley.
The structural change here is geographic, not arithmetic. Essex, Norfolk and Suffolk are rural Leave-voting counties where the demographic fit with Reform was visible a year ago. Sunderland and Wakefield are Labour's industrial base, the wards Labour used to count without counting. A projection that crosses that line is qualitatively different from one that does not.
Caveat the methodology. PollCheck applied a council-specific override on Sunderland because its uniform-swing assumption, the standard model that vote shifts proportionally across constituencies, was under-projecting Reform there. An override is a modelled correction, not a new poll. The projection is evidence of fit, not of a result; readers should hold both at once.
