That question is easy enough to answer thanks to Forbes' list of the richest people in the world for 2018.
Interestingly, Trump-branded golf properties in locations where he won the 2016 election saw a more than 5% increase in revenue, while those in places where he lost the election - like California - had a 4% fall in revenue, according to Forbes' analysis.
Two Chinese billionaires rose to be among the 20 richest people in the world: Ma Huateng, CEO of Chinese internet giant Tencent who is the richest person in Asia and number 17 in the world, and Alibaba founder Jack Ma.
Mr Bezos' fortune has leapt to $US112bn from an estimated $US39.2bn a year ago.
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Mr Gates has headed the list for 18 of the past 24 years. The magazine estimates his net worth at $3.1 billion, down from $3.5 billion a year ago.
Warren Buffett - The influential Berkshire Hathaway Inc. His fortune is up from $US75.6bn a year earlier.
United States investor Warren Buffett rounded out the top three with an estimated fortune of $US84 billion ($107 billion), while daughter of Walmart founder and chairman of Crystal Bridges Museum of American Art Alice Walton - valued at $US46 billion ($58 billion) - was deemed the richest woman in the world. California alone has 144 billionaires, more than any country besides the U.S. and China. The licensing losses resulted in a $50 million drop this year, according to Forbes.
Luisa Kroll and Kerry Dolan, from Forbes Media, said: "The superrich continue to get richer, widening the gap between them and everyone else".
Despite Mr Trump's previously inaccurate claims he was worth more than $10 billion, Forbes said he is still the richest president in USA history. The magazine uses that day's stock prices and exchange rates from around the world.