Feelings have been running high for days and sterling was ready for a shock
but it still couldn't avoid a fall when a key vote on Theresa May's Brexit deal set for Tuesday was delayed -
after even the Prime Minister herself acknowledged she would lose.
The pound fell to 20-month lows close to 1.25 to the dollar
although May still insists her deal is the best solution for Britain.
(SOUNDBITE) (English) BRITISH PRIME MINISTER, THERESA MAY, SAYING:
"It honours the result of the referendum, it protects jobs, security and our union but it also represents the very best deal which is actually negotiable with the EU. I believe in it, so do many members of this house and I still believe there is a majority to be won in this house."
The Northern Irish backstop - an insurance policy aimed at avoiding a return to border checks - was the main sticking point.
But May had a warning for those thinking they can get a better deal.
(SOUNDBITE) (English) BRITISH PRIME MINISTER, THERESA MAY, SAYING: (BEGINNING OF SOUNDBITE PART OVERLAID WITH SHOT OF MAY SPEAKING IN PARLIAMENT)
"There will be no enduring and successful Brexit without some compromise on both sides of the debate."
With so much uncertainty - it's little surprise perhaps that the brakes are on for the UK's economy,
The latest data - for the three months to October - showed a slow down in car sales and factory stoppages due to weaker demand
GDP growth slowed to 0.4 percent- down from a 0.6 percent in this year's third quarter.
(SOUNDBITE) (English) KEN ODELUGA, MARKET ANALYST, CITY INDEX, SAYING:
"It has caused massive delays in terms of investment decisions, and all sorts of other decisions as well, and that is essentially what is causing the pause."
Three three scenarios remain on the table
A crash out of the EU, another referendum on EU membership, or a last minute renegotiating of May's deal.