Donald John Trump (born June 14, 1946) is the 45th and current president of the United States. Before entering politics, he was a businessman and television personality. Donald John Trump (born June 14, 1946) is the 45th and current president of the United States. Before entering politics, he was a businessman and television personality. Fred Trump started working in real estate with his mother Elizabeth when he was 15, after his father Friedrich had died in the 1918 flu pandemic. During the three years since Trump announced his presidential run in 2015, Forbes estimated his net worth declined 31% and his ranking fell 138 spots. When he filed mandatory financial disclosure forms with the Federal Elections Commission (FEC) in July 2015, Trump claimed a net worth of about $10 billion; however FEC figures cannot corroborate this estimate because they only show each of his largest buildings as being worth over $50 million, yielding total assets worth more than $1.4 billion and debt over $265 million.