Ed Miliband has admitted that the last Labour government did not do enough for ordinary people. The Opposition leader said the party has become distant from the public on issues such as immigration, and failed to rein in excess at the top of society.
He said: "The most important thing the Government needs to do is come clean about what the implications of their pension proposals are.
"I think it is devastating for the Prime minister that you have now got Lord Heseltine saying that he is essentially operating in the party interest and not the national interest, and warning about the dangers of the approach."
Ed Miliband has begun fleshing out his idea of a "One Nation" Labour Party, describing it as "turning the spirit of collective endeavour that we see in our daily lives' into the way the nation is run."
He added: "So many people feel a sense of insecurity, their prospects diminishing not growing. They feel on their own, not part of a common endeavour."
Labour leader Ed Miliband will pledge to make the housing market fairer for private renters today as he fleshes out his "One Nation" philosophy.
Addressing the Fabian Society in a keynote speech, Miliband will warn that action is needed to prevent damaging social divisions between people who rent their homes and those who own them.
He will admit that the "New Labour" of previous years was "too timid in enforcing rights and responsibilities, especially at the top", and that it was "too sanguine about the consequences of the rampant free markets".
"By the time we left office, too many of people of Britain didn't feel as if the Labour Party was open to their influence, or listening to them", he is expected to say.