Two years after leaving office, Joe Biden couldn't resist the temptation last year to brag to an audience of foreign policy specialists about the time as vice president that he strong-armed Ukraine into firing its top prosecutor. In his own words, with video cameras rolling, Biden described how he threatened Ukrainian President Petro Poroshenko in March 2016 that the Obama administration would pull $1 billion in U.S. loan guarantees, sending the former Soviet republic toward insolvency, if it didn't immediately fire Prosecutor General Viktor Shokin. "I said, 'You're not getting the billion.' I'm going to be leaving here in, I think it was about six hours. I looked at them and said: 'I'm leaving in six hours. If the prosecutor is not fired, you're not getting the money,'" Biden recalled telling Poroshenko. "Well, son of a bitch, he got fired. And they put in place someone who was solid at the time," Biden told the Council on Foreign Relations event,