Labour is on course to gain four councils in the council elections on Thursday, May 5.
Plaid Cymru could lose 42 seats, according to the poll. The poll, by Electoral Calculus and Find Out Now, suggests Labour will take back Bridgend and Merthyr Tydfil - two councils they lost five years ago - and gain Carmarthenshire and Flintshire. The poll suggests Labour would also take back Blaenau Gwent, the third council it lost in 2017.
All eyes will be on the election results as to the impact on the Conservatives and whether a drop in Tory support adds pressure to Boris Johnson. The only Welsh council currently held outright by the Conservatives is Monmouthshire which the poll suggests would remain in Conservative control. The Conservatives currently have 14 councillors in Vale of Glamorgan — one more than Labour who run the council with Independent councillors — and the Tories ran the council from 2017 until 2019 when a split in the local Tory group ended up with power switching hands. The poll has that authority returning to Conservative control. You can read the background of the split here.
