His father made his fortune.
Trump took his father’s inheritance of 6 million dollars and parlayed it into 6-10 BILLION DOLLARS. That’s quite the return on his father’s initial seed money, wouldn’t you say? Trump equals businessman par excellence.
No, you are not correct. His father had a construction firm that mainly concentrated on middle class housing. His father was in no means what most would call rich but he was not poor either. Trump took that business and made it what it is today.