While Special Counsel Robert K. Hur has raised the issue of mental deterioration in explaining why he declined to prosecute 81-year-old Joe Biden for illegal retention and sharing of classified documents, the president chose another rationale to declare himself not culpable: He shifted the blame to the staffers who boxed up his records as he left the vice president’s office in 2017.At a press conference hastily assembled after the report’s release, Biden said he assumed his aides had shipped “all" the documents to the National Archives in College Park, Md. “I wish I had paid more attention to how the...