Ask historians or laymen to name the most blatantly corrupt pardon over the first 230 years or so of American presidenting, and most will likely arrive at the same answer: Marc Rich.
Rich, a multiple-passport-holding, proudly amoral oil trader who specialized in sanctions-circumventing commerce with the likes of Nicolae Ceaușescu and Ayatollah Ruhollah Khomeini, fled to Switzerland in 1983 rather than face a potential life sentence and $1.6 million in fines on 65 counts of wire fraud, trading with the enemy, and tax evasion. (It was the biggest tax evasion case to date in U.S. history, at $48 million—around $150 million today.) Yet Bill Clinton, in the final minutes of his presidency, gifted Rich a midnight pardon.