Only on the "CBS This Morning" podcast, we examine the special relationship between the United States and the United Kingdom as President Donald Trump visits England on a State Visit. Talking with CBS News correspondent Vladimir Duthiers, Council on Foreign Relations senior fellow Charles Kupchan discusses the origins of the relationships and how the two countries went from sworn enemies to the closest of allies. They also discuss the current status of the relationship between President Trump and Prime Minister Theresa May amid the backdrop of Brexit. Kupchan makes the case that the decline in British influence due to country's self-isolation as had an effect on the special relationship.