$BTC Donald Trump, president of the United States, has allied with cryptocurrencies since last year's electoral campaign. His promises to turn his country into a crypto-state have stimulated the prices of many cryptocurrencies and left a mark on the volatility of the main references: bitcoin, ether, and XRP. With the victory of the Republican on November 4, the prices of digital currencies experienced a quake that altered both their profitability and their volatile behavior.