SamCam is the Tories secret weapon, poll shows

Samantha Cameron holds a baby on the campaign trail

Samantha Cameron is twice as popular as other leaders’ wives, a new poll in the Evening Standard has found. The survey shows that Mrs Cameron is a a bigger election asset than the wives of other leaders – although she has also been in the public eye more frequently in recent weeks.

Justine Miliband, the wife of the Labour leader, is famously publicity shy and prefers to only accompany her husband at key moments, but she gave a highly personal interview to the Mirror.

Miriam Gonzalez, the wife of the Liberal Democrat leader Nick Clegg, is seen more frequently on the campaign trail when she is not at work in her high powered job at an international law firm.

Justine Miliband at a campaign rally in Warrington last week

The poll will be encouraging to the Conservatives who have decided to push Mrs Cameron to the front of the party’s general election campaign in recent days, with the Prime Minister’s wife appearing in a series of laid back ‘soft’ interviews.

Miriam Clegg with the Lib Dem leader at the party’s spring conference

It found that 54 per cent of voters said they liked Mrs Cameron, double the proportion who opted for Ms Gonzalez or Mrs Miliband.

It comes as Miriam Clegg is set to appear alongside her husband in an ‘at home’ interview with ITV this evening.