Historical clue formulations

• Rep.'s counterpart — 2026-04-28
• One in 100: Abbr. — 2026-04-26
• Robert Byrd was one for 51 years: Abbr. — 2025-12-13
• Whitehouse in D.C., e.g.: Abbr. — 2025-12-12
• Warren or Warnock: Abbr. — 2025-06-27
• Kamala Harris, once: Abbr. — 2024-10-25
• Title for Sanders: Abbr. — 2024-09-15
• One out of 100: Abbr. — 2024-01-11
• Pres. Biden, once — 2023-09-17
• One of 100 in D.C. — 2023-06-19
• Hillary Clinton or Kamala Harris, once: Abbr. — 2022-12-30
• Ottawa N.H.L.er, to fans — 2021-09-02
• One in a hundred: Abbr. — 2021-07-11
• Former monetary unit in Japan — 2020-11-05
• D.C. V.I.P. — 2020-11-04
• One with a six-year term: Abbr. — 2020-06-16
• 1%-er in D.C.?: Abbr. — 2020-05-31
• Cotton, starting in 2015: Abbr. — 2020-05-22
• One of 100 in D.C. — 2020-03-30
• Title for many a W.H. aspirant — 2020-03-29
• China's Sun Yat-___ — 2019-10-16
• Many a pres. candidate — 2019-10-08
• Booker, for one: Abbr. — 2019-05-15
• Politician with a six-year term: Abbr. — 2019-04-16
• Cory Booker or Cory Gardner: Abbr. — 2019-04-01
• One of 100 in D.C.: Abbr. — 2019-02-20
• Worker in a chamber: Abbr. — 2018-10-25
• Many a presidential hopeful: Abbr. — 2018-08-26
• Booker's title: Abbr. — 2018-06-01
• One of 100: Abbr. — 2018-03-18
• Booker or Tester: Abbr. — 2017-11-23
• One in 100: Abbr. — 2017-09-03
• Joe Biden, for 36 yrs. — 2017-03-29
• Sanders, for one: Abbr. — 2016-11-26
• Title for Palpatine or Amidala in "Star Wars": Abbr. — 2016-10-16
• Sessions, e.g.: Abbr. — 2016-05-25
• Cloture voter: Abbr. — 2016-05-21
• Jack Reed or Harry Reid: Abbr. — 2016-05-10
• Hill V.I.P.: Abbr. — 2016-04-27
• 2005-08 position held by Barack Obama: Abbr. — 2016-03-14
• Rand Paul or Marco Rubio: Abbr. — 2016-02-16
• V.I.P. on the Hill: Abbr. — 2015-02-25
• Paul, for one: Abbr. — 2015-02-21
• Schumer or Shaheen: Abbr. — 2014-11-24
• D.C. V.I.P. — 2014-06-03
• D.C. mover and shaker: Abbr. — 2014-03-23
• Nixon, e.g., for two yrs. — 2014-02-12
• One in an upper chamber: Abbr. — 2014-02-05
• When repeated, a breath freshener — 2013-12-14
• See 65-Down: Abbr. — 2013-12-10