 They said the rust factor is real, said David Axelrod, a former top strategist of Mr. Obama. Neither of these guys is accustomed to having someone a few feet away grilling them with no deference. Could it have been people familiar with the planning at Camp David who were not authorized to speak publicly about it? Of course they were. They leaked it. The workdays vary in length and are not rigidly structured. Mr. Biden and his most trusted advisors work on what they think would be best to refine or practice in the moment.