In a Sunday Telegraph article today, Mr Cameron insisted that only the Conservatives can deliver reform in the EU and a referendum.
Speaking about Conservative party rivals for the European election, David Cameron referenced Dad's Army character Private Frazer:
There are politicians who refuse to be upbeat about Britain.
To them, pessimism equals patriotism.
They insist that our best days are behind us and that everything is bound to get worse.
Like Private Frazer politicians they're perennially crying out that 'we're all doomed'.
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Yesterday was notably chilly - some places were colder than it was in January - but temperatures will be doing a little better today.