Fancy a fever tree and vodka.

Yes, vodka, not gin, because this is

Fever tree Mexican lime soda.

Yes, soda, not tonic.

With Mexican lime and Japanese Yuzu

for a zesty, refreshing lime soda,

that's just sweet enough.

Delicious with vodka or on its own.

Fever tree Mexican lime soda,

mixed with the best.

Mmm, now that hits the spot.

Hello and welcome to the political party.

This one featuring Professor Philip Cowley,

who's a professor of politics at Queen Mary University of London,

a renowned university for politics students.

Philip is also the co-author of a brilliant book

called the British General Election of 2017,

which can't recommend highly enough.

He's co-authored the last three editions

and they're always regarded as the bible of the last general election.

And we talk about that book in some detail in this interview.

And although you get a bit of detail from it,

...