You sure he did not say WHEN he is elected? HA. I wonder if Trump has considered that he will be an employee of the American people. Maybe not taking a salary makes him more of a volunteer who cannot be fired. Self financing sure cuts through a lot of onerous things usually associated with running for public office. He is quite an interesting person and refreshing in a number of ways.
Trump doesn't need the money; neither does Icahn, who has also said that he would work for no salary; IIRC.
Trump REALLY just wants to "save" America and make it GREAT again. :-)