SINCE the 2014 independence referendum, we have seen two kinds of "shocks" in our politics that have coincided with increased support for Scottish independence. There are one-off events that propel constitutional politics to the forefront of the public consciousness and slower shifts in perceptions of the competence of Scotland’s two governments.
How have the polls changed since then?
The Brexit vote in 2016 was followed within a week by three polls showing Yes ahead, as the prospect of Scotland’s majority Remain vote being subsumed by England’s narrow Leave majority pushed the constitution to the top of the political agenda.
