ConHome’s conference, Securing a Majority, grappled with the question of how to reach alienated UKIP voters.
Next year’s election, he warns, should not be fought on last week’s issues.
Details of the battleground mega-poll of 26,000 voters in 26 Conservative-Labour marginals.
The Chancellor insisted that neither Labour nor UKIP can compete with the Tories for sheer reliability.
Read the Chancellor’s speech – with its heavy emphasis on the Conservatives’ referendum pledge – in full.