“People thought the most important Conservative promise was to Leave the EU - they failed to do so. Whether or not this failure was their fault, it substantially impacts upon how we judge the success of their term in office” Jordan Urban of GovTracker noted.



This was compounded by failures on other key promises to reduce immigration, cut the deficit, balance the budget and lift the ban on new grammar schools.“Voters have long been sceptical that parties will fulfil their election promises, said Dr Chris Prosser of The University of Manchester. “The academic literature has generally rated governments a lot more sympathetically, finding that parties fulfil most of their campaign promises, but our new methodology produces a result that aligns more with the common-sense view. Our raw figures show that the Conservatives fulfilled 175 out of 257 promises, which sounds impressive, but it is questionable whether voters thought many of those 175 promises were important.”



So what does this mean for the 2019 General Election? “Voters aren’t always misguided in their scepticism about parties’ most eye-catching promises” said Adam Feldman of GovTracker.



The five most central Conservative promises were:

Leave the EU (broken) Reduce annual net migration to under 100,000 (broken) Leave the EU’s Customs Union (broken) Introduce a bill making preparations for setting up new trade deals after Brexit (fulfilled) Leave the EU’s single market (broken)

While the five least central Conservative promises were:

Keep supporting the Welsh-language TV channel S4C (fulfilled) Introduce child bereavement leave (fulfilled) Require schools to have a single point of contact with mental health services (partially fulfilled) Create Schools Maps to give parents detailed information about local schools (fulfilled) Hold a 'Great Exhibition of the North' to showcase Northern culture (fulfilled)

Many of these policies are looked on favourably by the public, but very few people associated them with the Conservatives’ agenda in 2017.