
In addition to his interviews with Sam Bankman-Fried, Lewis met Sam Bankman-Fried more than 100 times and also interviewed his FTX colleagues for the book.
In two years, author Michael Lewis met Sam Bankman-Fried over a hundred times while writing his former crypto mogul's biography - but it didn't seem like a cushy ride-along.
In a statement, Lewis said in The Globe and Mail, a Canadian newspaper, Donaldson told the Associated Press.
Lewis' book was released on Tuesday - the same day Bankman-Fried's criminal fraud trial started.
The author has been criticized for comments he made during promoting his book, including criticism of his defense of FTX. Lewis had told CBS's '60 Minutes' that the crypto exchange would still be making 'tons of money' if there hadn't been a run on customer deposits.
Bankman-Fried faces seven charges, including fraud and conspiracy relating to FTX's collapse. He has been released without a lawyer and has not pleaded guilty to any charges.
Crypto exchange FTX, worth $32 billion in early 2022, filed for Chapter 11 bankruptcy on November 11 of the same year after a week-long liquidity crisis.
A Bankman-Fried representative declined to immediately respond to a request for comment from Insider sent outside regular business hours.