Developments and scenarios ahead: This is probably the most decisive week for Brexit and the situation is still rapidly evolving. Last night, Mrs. May and Mr. Juncker announced an agreement on the most controversial part of the Brexit deal: the Irish border backstop. This agreement is aimed at getting the U.K. Parliament to accept the Brexit deal previously rejected in January. May described what was achieved yesterday as “legally binding changes” to the deal, Juncker instead spoke of assurances and guarantees. Theresa May has failed to get what Parliament had asked her; however, she has obtained some assurances (a “legally binding” agreement”) that could clearly lead a very significant number of MPs to change their minds and accept the proposed deal. The most controversial part of the witdrawal agreement (the fact that the Irish backstop was permanent) has been revised to give the UK the technical opportunity to backtrack later.