I noticed that the world trusted us with the economy by making the USD the global reserve currency in 1944, after a 3 term presidency with FDR. The 22nd amendment confuses me to no end. Academic surveys rate FDR as the 2nd best president of all time, and it appears the US rose to be the rank 1 economy under his rule. I'm hoping to understand the collective psyche that could result in banning long term leadership after such a success story?