VIDEO-Could Brexit Be Canceled? Here's How Vote Might Be Reversed - NBC News

A man carries a EU flag after Britain voted to leave the European Union on Friday. NEIL HALL / Reuters

"There's a lot of talk in England today of having another vote," Kerry said in Aspen. "Cameron said it won't happen, certainly not for about a year or so or whatever. But, a year? It's within a two-year period, so who knows? I can't sit here and tell you I know what's going to happen."

However the idea of a second vote has been dismissed as fundamentally undemocratic by several lawmakers on both sides: The voters have already spoken with a majority of more than 1 million, they say.

"It is unlikely, but not impossible," said Hazell, the University College London academic. "It all depends how the polls move in the next couple of months. If they suggest that enough people think they made a serious mistake, as the consequences of Brexit become clearer, there will be a stronger incentive for the politicians to find a way of backing out."

Another possibility, however, is that there could be a second referendum at the end of Britain's negotiation with the EU, which is likely to last years.

This scenario might see the British government turning back to its citizens after a deal was struck and asking: "This is what life is going to be like under Brexit, do you still want to do it?" according to Fielding.

He agrees with most experts that the EU would hold the power in negotiations. With only two years to strike a deal, the U.K. appears more likely to blink than the remainder of the 27-member bloc. It may be forced to make concessions — as it would be far worse off if no post-Brexit relationship was forged.

Health Secretary Jeremy Hunt

has already called for a second vote, but only to decide what sort of post-EU deal the U.K. wants, rather than to cast doubt over the decision itself.

In Scotland — where most people voted to remain in the EU — First Minister Nicola Sturgeon has already said she wants

a second referendum on independence, after the idea was narrowly voted down by the public in Sept. 2014.

Sturgeon, who is leader of the Scottish National Party, or SNP, also suggested that her lawmakers may decline to give their legal consent to the referendum decision, but

others have argued this would not be enough to veto the decision.

The only thing people seem to agree on is that Britain now navigating uncharted waters.

"I wouldn't write us out of Europe yet, OK?" Tony Blair, who spent 10 years as Britain's prime minister,

told Morning Joe on Tuesday. "I think there's a lot still to come ... I can't see us having another referendum at this point but I wouldn't rule anything out. Let's wait and see."
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