Your publicity says that Brexit is the most important issue facing the country. I agree wholeheartedly. I have been campaigning with you against it.

Here in Cambridge we are sure to get a passionately pro-EU MP. The only realistic candidates are both of that opinion. I think the better choice is Daniel Zeichner MP because he’s a voice of reason within the Labour Party, and as an MP he can have the most influence on the leadership. You prefer your own man. OK.

But given the scale of the disaster facing the country, the question of who gets to be MP for Cambridge is just not that important. What matters is to win as many seats as we can from the parties who are set on steering us towards the edge of the precipice. We can all do that best by directing our efforts to other constituencies.

As a Labour Party member with experience of the party’s organizational techniques, I can be most useful in a place where there is a straight, winnable fight between Labour and the forces of darkness. The obvious choice for me therefore is Peterborough. So today I have contacted the secretary of Peterborough Labour Party and volunteered my services.

I urge you to do likewise: go outside the city and direct your efforts where you can make a real difference on the most important issue. Please give it some serious thought.

Update: the excellent Get Voting tactical voting dashboard from Best for Britain supports my view. It recommends “either Labour or Lib Dem” in Cambridge (and it notes the “current Labour MP’s excellent record on Europe in Parliament”). Meanwhile for Peterborough it urges a Labour vote, and in both South Cambs and South-East Cambs it recommends Lib Dem.