THERESA May will today provoke a row with Nicola Sturgeon by insisting it is her “duty to represent all of our United Kingdom” in the Brexit talks as she pledges to strike a deal with the EU that is broader and deeper than any free trade agreement anywhere in the world.http://www.heraldscotland.com/news/16059785.May_stokes_row_with_Sturgeon_over_Brexit_saying_it_is__quot_my_duty_quot__to_represent_all_UK/