Whatever voters think of Republican presidential candidate and former New York City Mayor Rudolph Giuliani now, to the late Supreme Court Justice Harry Blackmun he was a 5 out of 10.

Blackmun made his private assessment of Giuliani in 1983 when the then-associate attorney general argued before the Supreme Court in Bell v. United States, a minor case interpreting the bank larceny law that has languished in obscurity ever since. Blackmun’s notes on the argument, along with all his other papers, are on file at the Library of Congress.