Historical clue formulations

• Highest-ranking Asian American politician before Harris — 2024-12-07
• Senator after whom Honolulu's airport is named — 2022-06-04
• Former Hawaiian senator Daniel — 2018-10-10
• Daniel ___, first Japanese-American to serve in Congress — 2017-04-27
• Hawaii's Sen. Daniel — 1999-11-02
• Aloha State Senator — 1996-05-10
• Senator Daniel — 1996-03-21