A curse on both your houses! British politics is going through a revolution, as voters turn their backs on the two traditional parties. National elections have been dominated since the 1930s by Labour and the Conservatives. Other parties may win a few seats, and of course the SNP are a powerful political force in Scotland, but there's usually only room for two big parties at Westminster.

In the 2019 general election, for example, Labour and the Conservatives got 75.7% of the vote between them. And in 2017, the big two were even more dominant - with a total of 82.4% of the vote. But that's changed. A new poll by Find Out Now found that only 37% of voters, fewer than four in ten, said they planned to support one of the two traditional parties.

It had Labour on 21% of the vote and the Conservatives on 16%. is steaming ahead, and apparently has the backing of 33% of voters. But that doesn't explain it all.

The Liberal Democrats are backed by 14% of voters according to the poll, not far behind the Tories, while the Greens are supported by 10%. They are picking up support from disillusioned Labour lefties who don't like Keir Starmer, and even from liberal-minded Tories.

It's clear that many voters feel . Some people think we are seeing the end of two party politics - but I'm not so sure.

Something similar happened in the 1980s when a new party called the SDP was created and looked like it might replace Labour. People said it would "break the mould of two party politics" but it ended up merging with - or really being taken over by - the Liberal Party, which was rebranded the Liberal Democrats.

And of course, it's always possible that the opinion polls don't reflect how people will really vote when the general election comes, though it has to be said that polls in the past have generally shown Labour and the Tories far ahead of the other parties

It's still possible that the next election will turn out to be a battle against two parties - just not the parties we are used to.

This isn't really about opinion polls. It's about how voters see things. The big question at the next general election will be whether should continue as Prime Minister. For those who want him gone, the issue then is how to get rid of him.

At some point, it is likely to become clear who has the best chance of replacing Sir Keir in Number 10 - either Conservative leader Kemi Badenoch or Reform UK leader Nigel Farage. This could be decided by who's ahead in the opinion polls, or one leader performing better than the other in a TV debate, or just a general sense that one party has momentum and the other does not.

But the next election could still turn out to be a two horse race. That's why the battle right now is between Mrs Badenoch and Mr Farage to decide who is the "real" leader of the opposition. The winner of that contest will become a candidate for Prime Minister once the general election arrives.