At 6.45pm the Prime Minister, who tweeted out news of the call this morning, will answer vetted questions submitted by the public.
Tonight I'm calling supporters to discuss how only the Conservatives can deliver real change in Europe. Join me: https://t.co/1ukE3UcuK5— David Cameron (@David_Cameron) April 28, 2014
In a move described by the editor of influential website politicalbetting.com Mike Smithson as "a smart campaigning import from the US", members of the public can sign up online to get a call shortly before the ‘briefing’ starts.
The Conservatives are not officially commenting on the initiative, but a portal for members of the public to sign up for the call describes it as "a discussion on the vital upcoming European and local elections".
One Tory source said that though there had been previous calls "they were for campaigners and activists and more internally focused – this is the first one to go out far and wide".
Referencing Liberal Democrat leader Nick Clegg's weekly appearances on a London-focused radio show, they added the call would be "LBC-style" in the way members of the public phone in to submit questions.
The move comes ahead of the two sets of votes, which will be taking place on 22 May, with UKIP expected to do well in the European elections in particular.
Yesterday, a Sunday Times YouGov poll revealed the Nigel Farage-led party was leading in the European election polls for the first time with 31 per cent, beating Labour’s 28 per cent share.
The Tories and Liberal Democrats, meanwhile, polled 19 and nine per cent respectively.