The former Deputy Prime Minister entertained the idea voters could call for a U-turn on Article 50 once they see “reality” following the “utopian exceptions” of Brexiteers.
He insisted a move to later remain in the EU “might happen” given the challenges of Brexit.
The Lib Dem MP told Sky News: “Of course, we can always change our mind, it’s a free country, it’s a free world, of course, we can change our mind up to the very point that we actually finally leave.
“I personally don’t think that the country’s going to change its mind unless there’s a major shift in public opinion.”
Nick Clegg suggested the fight to stay in the EU was not over
Of course, we can always change our mind, it’s a free country, it’s a free world, of course we can change our mind up to the very point that we actually finally leave
He said a change in public opinion would only happen once the public sees how negotiations are going and what effects it could have on the economy.
Mr Clegg said: “[It’s] partly how the negotiations are going, partly what happens to the economy, partly as I say, if they see that there’s an increasingly large gap, in your example, between what the estate agent has told you what the property offers.
“Until you discover that the taps don’t work, the walls are about the crumble, the roof has got great big holes in it, then you say ‘actually, I don’t want to live in here after all’.
“I think that might happen particularly because [of the] ludicrous sorts of utopian expectations being raised by the Brexiteers of what we’re going to get from this process.
Remoaners Club: These people hate Brexit! Mon, January 16, 2017
Remainers are finding it hard to accept Brexit.
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He slammed Brexit backers for selling a "utopian" ideal
“I don’t think they’ve levelled with the British people at all about the reality of what this country faces as we leave the European Union.”
As Article 50 was triggered, Mrs May made a rallying call to unite all sides of the debate.
She said: "Now is the time for us to come together, to be united across this House and across this country to ensure that we work for the best possible deal for the UK and the best possible future for us all."
Mrs May told the House of Commons: "This is an historic moment from which there can be no turning back."
“This great national moment needs a great national effort. An effort to shape a stronger Britain.
“Let us come together and work together. Let us choose to believe in Britain with optimisms and hope. If we do, we can together make a success of this moment.”