Boris Johnson endorsing Tory candidates "will make a difference", according to Rishi Sunak.
July's General Election will mark two years since Mr Sunak said he had no confidence in Mr Johnson to lead the country, but it appears the latter could now play a role in revitalising the Conservative's campaign.
The former Prime Minister is reportedly putting his name to thousands of letters that will be sent out to voters urging them to not vote for Reform UK.
The latest party of Nigel Farage is continuing to rise in the polls ahead of the election in just over a fortnight.
Mr Johnson has also reportedly recorded a series of video endorsements for candidates.
According to his wife Carrie's Instagram account, Mr Johnson is currently holidaying in Sardinia, though is working with the party to help shore up support.
Speaking on the campaign trail, Mr Sunak said: “It’s great that Boris is supporting the Conservative Party, I very much welcome that.
"He’s endorsing many candidates in videos and letters which have been coordinated by the campaign and I know that will make a difference."