Although close allies for decades, the U.K. has one major difference to its American cousin: the Monarchy. Presidents have come and gone for hundreds of years with each political party fighting it out for a place at the White House. And yet, the British Monarchy has remained a constant, witnessing the rise and fall of governments across the Atlantic from a distance. But what happens when one of the world's most powerful political leaders meets one of the world's most powerful families? This is When the Windsors Met the Bushes.