Nick Timothy, blamed by many for the Prime Minister’s disastrous decision to call a snap election, claimed Britain must “offer compromises” to the EU after months of negotiators being knocked back by the bloc.
He went on to claim it was vital the EU did not see Brexit as a threat to the bloc which could “unravel the whole European project”.
Writing in the Sun, he said: “We could, for example, make a generous offer to a select few member states on intelligence-sharing and counter-terrorism cooperation.
“And if it helps us to get an ambitious trade agreement, we could help the EU budget by making a reasonable exit payment.
“But we might, in several other ways, need to offer compromises.
“We should not, for example, accept the writ of the European Court of Justice in Britain, but British and European judges could still work together to resolve trade disputes.
“We should continue to insist on restoring our ability to control European immigration, but we could still establish a preferential system for Europeans who want to work in Britain.”
The former chief aide to the PM claimed despite “sneering critics” the UK was well placed to forge a new relationship with the EU.
He added: “We should continue to insist on restoring our ability to control European immigration.
“But we could still establish a preferential system for Europeans who want to work in Britain.”
It comes as Mrs May wins the first big test of her new minority government, gaining support from Labour MPs on the second reading of the EU repeal bill.
The bill will allow EU law to be passed into UK common law, allowing for a smooth transition as Britain makes its way out of the 27 member state bloc.
The bill will now move onto the committee stage before being given royal assent after being passed by 326 votes to 290.
The victory will buoy the leadership of Theresa May following her crushing snap election result which saw her forced to lead a minority government with a confidence and supply deal from the DUP.
And it will cause headaches for Jeremy Corbyn after seven of his own MPs rebelled to back the Government’s line.
The Prime Minister said the vote will offer “certainty and clarity” as the nation navigates Brexit.
She said: “Earlier this morning Parliament took a historic decision to back the will of the British people and vote for a bill which gives certainty and clarity ahead of our withdrawal from the European Union.
“Although there is more to do, this decision means we can…