Sir Jacob Rees-Mogg warned that the Tories and Reform UK will โ€œdestroy each otherโ€ unless the two parties unite. The former Conservative Cabinet minister raised fears that the Left could win an โ€œeven bigger majorityโ€ at the next election due to splits on the Right of British politics.

He said it is a โ€œdouble challengeโ€ as Left-wing voters are returning to Labour under Andy Burnham. Speaking at a Daily Express event at Tory conference, Sir Jacob said: โ€œWe do need everybody on the Right to realise that when we are dividing up the vote in the first-past-the-post system, we just destroy each other and we allow people of the hard-Left in.

โ€œAnd this has become more of a challenge because Andy Burnham and Zack Polanski are between them reuniting the Left.

โ€œAndy Burnham because he’s more appealing than Starmer, and Zack Polanski because he seems a complete lunaticโ€ฆ heโ€™s just a bit odd and he’s putting people off.

โ€œSo, we have a double challenge, a bigger challenge than we did six months ago, that we are disunited and the Left is united.

โ€œAnd that faces us with an election where the Left could win an even bigger majority than it’s currently got, and it could use it for the hard Left policies that Burnham has proposed.โ€

Sir Jacob said voters on the Right can work out who is best placed to win in their constituency while Reform leader Nigel Farage and Tory Kemi Badenoch continue to rule out a more formal pact.

The former Conservative MP said: โ€œSo, how do we work it out? Well, initially, I think we have to let voters work it out for themselves as they did in Makerfield and in Aberdeen, where in Aberdeen the Reform vote practically disappeared, in Makerfield our vote disappeared completely.

โ€œI think that voters are intelligent and can work these things out. And as the two leaders don’t wish to do any form of pact, that is as far as we can go at the moment.โ€

But he called for the two parties to form a coalition after the next election if it prevents a left-wing government,

The ex-Tory minister said it would be โ€œbonkersโ€ not to support such a move.

It comes as the latest YouGov poll puts Labour in the lead on 27%, while Reform UK is on 22% and the Conservatives on 20%.