The Prime Minister has accepted that many people are not yet convinced the current economic recovery will work for them.
David Cameron told ITV News Political Editor Tom Bradby: "There are millions of people in our country who have worked hard through this recession, who've held on to their jobs, who haven't seen a pay rise, who've seen prices go up for their weekly shop.
"They need to know that we're on their side and that help is on its way."
He said his Government needed to focus on "increases in living standards by allowing people to keep more of their own money to spend as they choose."
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Ms Leadsom has received the backing of Ian Duncan Smith, the former work and pensions secretary.
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