Former Goldman Sachs Chief and Trump Economic Advisor Says Bitcoin Lacks Integrity by CryptoPotatoDecember 2, 2020 Gary Cohn, a former advisor to President Donald Trump, who was also a COO at Goldman Sachs, has said that Bitcoin lacks integrity. Source Tagged : Aa News / Advisor / All News / Bitcoin / BTCEUR / BTCGBP / BTCUSD / BTCUSDT / Crypto News