| Clue | Source | Date |
|---|---|---|
| U.S. transit system that serves Washington | Universal | 03 Jun 2024 |
| Transport option in the nation's capital | USA Today | 18 Feb 2023 |
| Washington subway system, familiarly | Premier Sunday | 10 May 2020 |
| Its stops include Congress Heights and Federal Triangle | USA Today | 05 Dec 2019 |
| U.S. capital transit system | LA Times Daily | 29 Oct 2018 |
| U.S. capital transit system | The Washington Post | 29 Oct 2018 |
| U.S. capital transit system | ||
| Federal Triangle is one of its stops, familiarly |