OPPO
| Date | Clue |
|---|---|
| 2026-06-17 | Research for a political hit, slangily |
| 2025-04-13 | Research on a political rival, for short |
| 2024-09-17 | Research on a rival, in D.C.-speak |
| 2023-09-10 | ___ research, source of "dirt" on a political rival |
| 2023-09-06 | Dirt-digging research, for short |
| 2023-02-23 | ___ research (info on a political adversary) |