Given that most people don’t really understand what it is or how it works, it’s a field ripe for under- or over-reaction. Or, indeed, both at the same time.
Continuing our series on the key contests in each region and nation.
All the latest news of shortlists and selections from right across the country.
Plus details of selections in Clwyd South, Delyn, Wrexham, Moray, West Aberdeenshire & Kincardine, and more.
They could even tie with Labour. If they build in their 2015 success (and learn from their 2016 disappointment) more seats are definitely within reach.
Another region, another strong Conservative result against a mismanaged Labour campaign plagued by local miseries.
Welsh Tories are back to levels of representation last seen in the 1980s. How did they pull it off, and how they can build on it?
The third piece in our series examines the four-way battle for the hearts and minds of voters in Wales.