Leave means leave pro Brexit anti Europe demonstrator protests with a 'to delay is to betray' placard in Westminster opposite Parliament on the day MPs vote on EU withdrawal deal amendments on 29th January 2019 in London, England, United Kingdom.

The British pound fell to its lows of the day Tuesday after an amendment that would have delayed the U.K.'s exit from the European Union in the event both parties did not have a deal in place was voted down by Parliament.

Sterling fell 0.6 percent to $1.307 against the U.S. dollar following the vote. Prior to that, it had traded around the flatline versus the greenback.

The so-called Cooper amendment was defeated by a vote of 321 to 298. Named after Labour opposition lawmaker Yvette Cooper, the amendment would have sought to rule out a no-deal Brexit by giving the government more time to reach a formal agreement with the EU.

The Brexit deadline is currently set for March 29, but the bill would have pushed back that date to Dec. 31. Thus it would have diminished the chances of a no deal — which is widely seen as being a negative for the U.K economy where the country would have to rely on World Trade Organization rules for trade.

Like all amendments being voted on by the U.K. Parliament on Tuesday evening it would have required backing by the EU. Brussels has stated that it is not willing to budge on the Withdrawal Agreement that it agreed with U.K. Prime Minister Theresa May at the end of 2018.