Iain Duncan Smith has dismissed claims that a no-deal Brexit could be "catastrophic".
Speaking to talkRADIO's Julia Hartley-Brewer, the former Conservative Party leader said leaving the European Union without a deal would not be a "bleak prospect", as some politicians have previously suggested.
"We should have a bit of self-confidence in this and recognise it's the EU as we just go down the road that has to make an arrangement with us," Mr Smith said.
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"No-deal is not some bleak prospect where you just leave and there's no deal. The Europeans already accepted it would be a managed process."
His appearance on the show followed the news that MPs have voted against delaying Brexit in the House of Commons last night.
Mr Smith, the MP for Chingford and Woodford Green, added: "There are those who think extending has some purpose. I can't see what purpose extending has because you just kick the can down the road for another two months, and find you face exactly the same choice."