Number 10 has denied reports that the government is backing down on some key tenants of its attempted EU renegotiation.
Downing street said it was still pushing for these restrictions, as well as greater national sovereignty, the completion of the single market and governance rules to protect the interests of members of the EU who have their own currency.
However Cameron has come under criticism from those on the "Out" side, including Nigel Farage, who said the Prime Minister was asking for "next to nothing". Speaking to Sky news, Farage said the UK needed to negotiate the power for the UK to control its borders.
The revelation comes after Lord Nigel Lawson, the former Conservative chancellor, said Cameron didn't have "a cat's chance in hell" of getting the reforms he is seeking.
Tomorrow the "In" campaign will get started, just days after the cross-party "Out" campaign launched.