The Smoking Gun Archive - Nixon's 1937 FBI application and the agency's subsequent report on the applicant.
From the site:
Every August 9th, as the country mourns the anniversary of Richard Nixon's resignation, The Smoking Gun wonders what would have become of Dick had he joined the FBI, as he once intended. Here's Nixon's 1937 FBI application and the agency's subsequent report on the G-man wannabe (the bureau noted that the future president had a "manly appearance" and "perhaps" had executive ability.) Regretfully, Nixon opted for a legal/political career instead of a badge and a gun.