Premise: Halperin v. Kissinger was a court case filed by Morton Halperin against National Security Advisor Henry Kissinger, who approved wiretapping Halperin's home and White House office, starting in 1969. Halperin dropped the case after Kissinger publicly apologized on November 13, 1992.
Hypothesis: Because Kissinger apologized for what he did, Halperin dropped the case against him.