In 2004, Timothy O'Brien published TrumpNation. In the course of researching that book, "individuals who worked with Trump and a had a good sense of his finances" thought Trump's net worth was "
$150 to $250 million." Trump later sued O'Brien for damages for saying he was worth so little. The suit was later dismissed.
2. During the litigation of that lawsuit, O'Brien and his lawyers were able to review
a 2005 Deutsche Bank assessment of Trump's wealth which placed his net worth at approximately $788 million. Deutsche Bank should know. While most big banks have shunned Trump because of his multiple business failures, Deutsche Bank has been Trump's go-to bank for almost 20 years.
3. In financial filings, particularly with the FEC, Trump
routinely overstates his income by reporting business revenue as income or conflating the two numbers. The difference between revenue and income is obvious to anyone who has run a business as small as a lemonade stand.