Soon a man in the crowd – not shown on camera – interjected to ask: “What about corruption in Ukraine?” [cut] But before Biden could address the Ukraine question on Friday, the crowd booed the protester and began to chant, “We want Joe!” Biden seemed to follow the crowd's lead. “This man represents Donald Trump very well. He’s just like Donald Trump,” Biden said of the protester, who appeared to leave the event, with the crowd waving goodbye to him -- though it was unclear if he chose to leave or if he was forced out either by security or...