Star witness says FTX founder Sam Bankman-Fried hoped to become US president

Caroline Ellison, former chief executive of Alameda Research founded by Sam Bankman-Fried arrives at court on Tuesday (Eduardo Munoz Alvarez/AP/PA)

The trial of FTX founder Sam Bankman-Fried on Tuesday saw his former fellow top executive, Caroline Ellison, begin giving evidence against him.

She immediately blamed her former boyfriend for directing her to commit crimes before his cryptocurrency empire collapsed last November.