The president in particular is very much a figure head - he wields no real power whatsoever. He is apparently chosen by the government, but the qualities he is required to display are not those of leadership, but those of finely judged outrage. For this reason the President is always a fascinating character. On those criteria Donald Trump is one of the most successful presidents the US has ever had. He has already spent 4 of his 8 potential presidential years being investigated for fraud.