from slate's condensed version of Clinton's biography:

Clinton Learns a Lesson About Carelessness

Pages 220-221: While on the road campaigning for Congress against John Paul Hammerschmidt in 1974, Clinton loses five of his students' law-school exams. "I was mortified. I offered the students the option of retaking the exam or getting full credit without a specific grade. They all took the credit, but one of them was particularly upset about it, because she was a good student who probably would have made an A, and because she was a good Republican who had worked for Congressman Hammerschmidt. I don't think she ever forgave me for losing the exam or for running against her old boss. I sure thought about it when, more than twenty years later, that former student, federal judge Susan Webber Wright, became the presiding judge in the Paula Jones case."Link