Last May, in the weeks leading up to his presidential inauguration, Volodymyr Zelensky learned that a man named Rudy Giuliani wanted to meet with him. The name was only distantly familiar. But the former mayor of New York City was the personal attorney of the president of the United States, and he apparently wanted to make the case that certain investigations deserved the full attention of the new Ukrainian administration. Zelensky understood that it might be hard to say no.