Sir John Major has delivered a warning that the terms of the Brexit deal must not be dictated by the "tyranny of the majority".
The former Prime Minister reportedly told private dinner guests the views of Remain voters needed to be heard, with the 48% of people who opted to stay in the European Union entitled to their say.
The Times reported that Sir John accepted the UK would not remain a full EU member-state, but hoped the Brexit deal allow the UK to stay as close as possible to the single market, with Parliament having the final say on a deal with the EU the final decision on any new deal with the remaining members of the EU.
He said: "I hear the argument that the 48% of people who voted to stay should have no say in what happens,"
"I find that very difficult to accept. The tyranny of the majority has never applied in a democracy and it should not apply in this particular democracy."
He added there was a "perfectly credible case" for a second referendum.