The new group is intended to unite grassroots Tory activists and more senior politicians who;
support the Conservative agenda of individual aspiration, small government, low taxes, a broad rather than deep relationship with Europe, more direct accountability to voters and radical thinking on providing public services and tackling the country's social and economic challenges.
As well as Mr Davis and Dr Fox, other MPs named as backers are Conor Burns, Robert Halfon, Priti Patel and Dominic Raab.
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Nearly 38,000 runners will hope to complete Sunday's London Marathon making it the biggest event in its 35-year history.
Rain across central Britain with longer, intense downpours with thunder in places this evening. A lucky few will stay sunny and dry.
Planning on going to the London Marathon tomorrow? Read our handy guide first!