| Clue | Source | Date |
|---|---|---|
| #5 in continuous Senate longevity | Newsday | 02 Dec 2023 |
| Longtime 'liberal lion' of the Senate | The Washington Post Sunday | 27 Sep 2020 |
| Subject of the 2009 biography ''Last Lion'' | Newsday | 12 Sep 2015 |
| Subject of the 2009 biography "Last Lion" | ||
| Longtime Massachusetts senator | ||
| John Kerry's colleague |