The ongoing political wrangling surrounding Brexit was back dominating financial markets in the UK again on Monday.Sterling was the worst performing major currency yesterday, down over half a percent versus its US counterpart following some more doom and gloom headlines out of the Brexit negotiations. According to reports, Britain was preparing legislation that would undercut its withdrawal agreement with the European Union, raising the risk of the UK exiting negotiations without a full trade agreement in place. EU officials warned in no uncertain terms on Monday that any tinkering with the withdrawal agreement would scupper a potential trade deal, causing investors to fret about a possible ‘no deal’ scenario before the year is out.The reaction in the pound to the growing possibility of a ‘no deal’ Brexit has, however, been rather less aggressive than one would have anticipated - we’ve certainly not seen any knee-jerk panic selling that has characterised much of the process thus far. It will be interesting to see how sterling reacts to official word out of the negotiations, which are set to resume later on today. Should it become increasingly clear that a ‘no deal’ is the most likely scenario before Boris Johnson’s self imposed 15th October deadline, then we think there is certainly more room for the pound to fall from current levels.