Mr Clarke, a Tory grandee, was appearing on BBC Radio 4’s Any Questions programme on Friday shortly before history was made and the UK set itself on a newfound path of independence from the Brussels bloc. The ardent Remainer, who spent an almost 50-year career championing the European Union, staged an astonishing intervention in which he claimed he did not understand the benefits of Brexit.
Speaking on the BBC Mr Clarke said: “Little countries on their own are very limited.
“The economy, well, it’s all to play for. To be told we want a Canada-type deal means absolutely nothing.
“And I don’t think at the moment the Government quite knows what it is trying to negotiate.
“On that, a lot depends. Because either we will kill off great sectors of our economy or we will struggle by without too much damage.”
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Continuing his tirade, Mr Clarke said: “But I still don’t know what benefits Brexiteers think we are going to get.
“You hear great stuff about a ‘golden dawn’ and a ‘global Britain’ and all this rubbish.
“Quite what exactly it is supposed to happen to our advantage I haven’t the first idea!”
Mr Clarke’s blistering rant comes after the Prime Minister, Boris Johnson issued an address to Britons to mark the constitutional milestone on Friday evening.