Part 1 (for clarity, but mostly for the Huskisson and the trains gag...)
The second half of the PR Britain thing, in bullet form as one never knows what is going to happen in the modern climate. This is where it all got a bit daft, yes, but really, the whole idea is deliberately daft. And I maintain it has a degree of likelihood slightly larger than the one Iain Dale did about Michael Portillo overturning Blairs majority in 2001, the one about Wilson winning in 1970 due to Gordon Banks playing and then every big name of the 70s winding up getting assassinated in Enoch Powells Britain, and the lovely idealistic one about Callaghan calling the election in 1978, killing off Thatcherism, and bringing in a Socialist Utopia until 1992. Counterfactuals always run the risk of ridicule, so one might as well have fun with the principle, I say.
Now, last time, Palmerston had just lost office.