The former President of the United States, Donald Trump and Ken Griffin are both hedge fund billionaires who have slammed digital currencies for being a threat to their currency.

Griffin was the creator of Citadel LLC’s hedge fund, which is worth $38 billion. He spoke to the Economic Club of Chicago Oct. 4. ThaHe said that crypto is “a jihadist calling that we don’t believe the dollar.” He voiced his disappointment at the young generation’s efforts to create crypto-based dollar alternatives.