A Westminster vote which could kill off the existing Brexit deal could be held as soon as next week after British Labour leader Jeremy Corbyn demanded the immediate ballot.
In a statement tonight, Mr Corbyn said Prime Minister Theresa May's failure to win an EU summit compromise means the deal is now "dead in the water" and must be finished off.
"Rather than ploughing ahead and recklessly running down the clock, she needs to put her deal to a vote next week so parliament can take back control," he said.
Ms May had hoped to delay any vote up to January 21 to give herself time to win support.
However, Mr Corbyn's demand has piled further pressure on her when she needs it least.
Summing up the EU mindset, Luxembourg prime minister Xavier Bettel told British reporters in Brussels who asked him if he is willing to cause a no deal crisis:
"Brexit is your choice. Not mine."