By Lee Cain Where the City’s movers and shakers have their say. Today, Lee Cain, former Downing Street communications director and founder of strategic advisory firm Charlesbye, takes the notebook pen to talk UK-US relations, the toxic Tory brand and a thank you to Gareth Southgate The ‘special relationship’Newly elected Prime Minister Keir Starmer was keen to stress the special relationship was ‘stronger than ever’ when he made his debut on the international stage this month. However, as the most divisive US election in modern history begins, the PM will know his relationship with the new pre…