Historical clue formulations

• Pollster Lou or singer Emmylou — 2026-05-17
• 2024 campaign name — 2025-01-28
• Vice president after Pence — 2022-09-11
• Biden : Obama :: ___ : Biden — 2021-06-29
• ___ tweed — 2017-05-09
• Neil Patrick ___ of "How I Met Your Mother" — 2017-01-18
• TV news host Melissa ___-Perry — 2015-07-30
• Literally, with 62-Across, longtime action star — 2014-11-13
• Joel Chandler ___, creator of Uncle Remus — 2009-04-13
• Joel Chandler ___, creator of Uncle Remus — 2006-05-03
• "I'm OK - You're Okay" author — 2001-05-19
• "The Truman Show" actor Ed — 1999-12-05
• ___ Tweed — 1999-11-10
• "The Abyss" star, 1989 — 1997-10-24