When Donald Trump left the White House in January after serving just one term as president of the United States, he walked away knowing that his influence on the public was far from over. They worked to overhaul one of America's key institutions, which touches virtually every aspect of life and society. Meticulously and bit by bit, Mr Trump planted a bomb that will detonate in about two decades' time, when his true power will be finally realised. He may not be here to witness it - he would be 94 at that time, after all - but it will be quite a sight to see ⦠and it will fundamentally shape the US for generations to come.