Baroness Warsi: 'Win minorities, win majorities'.

The Foreign Office minister believes her party must learn from President Barack Obama’s recent triumph.

And in a warning to David Cameron, she ups his call for an Aspiration Nation with the need for “an Integration Nation”.

She will insist our prosperity is being damaged by barriers preventing non-white groups from succeeding.

The 41-year-old of Pakistani origin will claim Britain would be £8.6billion a year richer if minorities were empowered.

She will say in a speech:

This issue has gone from a moral imperative to an electoral reality.

By 2050, minorities will make up a fifth of all voters but only one in six of them voted Tory at the last general election.

And she will cite Obama’s success in attracting 70 per cent of Latino and Asian voters, and 90 per cent of the black vote.

She will tell pressure group Operation Black Vote:

Lord Ashcroft put the Conservative Party’s shortcomings in this area down to a brand problem.

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