Remember, Jamie Dimon ran the only large global bank that did not play in the securitized mortgage and credit default swaps fiasco. He once explained he did not understand it which is why he refused to allow his bankers to play in that pool. Yet his bank, like all the others were hammered by government grandstanders because it was politically expedient. Dimon is one of the old time bankers who actually does know how things work. So does Trump.