James is the son of Paul Warburg, a Rothschild associate. The Rothschild, Warburg, and Schiff Jewish banking families were close in Germany over a century ago. Paul Warburg was the architect of the American Federal Reserve (started in 1913). He also created the Council on Foreign Relations in 1920 (CFR https://www.cfr.org), which still works hard to create a Jewish World Government.
Paul Warburg’s brother was Felix Warburg, who married Frieda Schiff, the daughter of Jacob Schiff, another Rothschild associate. Jacob Schiff was one of the wealthiest men in America and was a driving force behind the Federal Reserve. Leon Trotsky stayed at Schiff’s NY mansion and trained. Schiff gave Trotsky $20 million to fund the Bolshevik Revolution, which murdered the Tsar of Russia and the Romanov family and went on to murder 40 million Russians.
Paul Warburg’s other brother was Max Warburg, who controlled the German Secret police in World War 1. He was the one responsible for letting Trotsky and Lenin into Germany and ferrying them into Russia to begin their brutal communist Revolution.
Notice that Jewish-controlled Wikipedia tells you little to nothing about this. They don’t mention who Paul’s family was. https://en.m.wikipedia.org/wiki/Paul_Warburg
If you read about Felix, you’d have no idea he was Paul’s brother.
Books to read on this.