Historical clue formulations

• D.C. V.I.P. — 2024-05-05
• Washington nickname — 2022-03-26
• Pennsylvania Avenue V.I.P. — 2022-02-25
• Oval Office V.I.P. — 2020-02-16
• White House V.I.P. — 2019-09-30
• Follower of "@" in a White House Twitter account — 2015-07-03
• Air Force One occupant, acronymically — 2014-09-30