1941 – President Franklin Roosevelt orders a top‑secret underground bunker beneath the White House East Wing to protect the presidency after Pearl Harbor, establishing a secure complex that later becomes a focal point of the 2025‑2026 ballroom controversy [6].

Oct 2025 – President Donald Trump directs the rapid demolition of the 123‑year‑old East Wing, clearing the site for a new ballroom and sparking outrage from historians and preservationists who warn the move bypasses required reviews [8][14].

Dec 8 2025 – Contractors resume demolition of the East Wing despite pending litigation, reinforcing the administration’s claim that demolition is the most cost‑effective solution for the planned expansion [20].

Dec 12 2025 – The National Trust for Historic Preservation files a federal lawsuit seeking a preliminary injunction to halt the East Wing demolition and ballroom construction, alleging violations of the Administrative Procedure Act and the National Environmental Policy Act [13][21].

Dec 15 2025 – The Trump administration submits a 36‑page court brief asserting that the ballroom and associated underground work are required for “safety and security” reasons, offering to share classified details with the judge [27][28].

Dec 16 2025 – U.S. District Judge Richard Leon leans toward denying the Trust’s request for a restraining order, noting the plaintiffs have not shown irreparable harm and warning against locking in underground utilities that could cement the project’s scope [28].

Dec 19 2025 – Senator Richard Blumenthal introduces the “No Palaces Act” to require National Capital Planning Commission (NCPC) approval before any historic federal building is altered, directly targeting the White House ballroom plan [3].

Dec 31 2025 – Long‑time White House chief usher Gary Walters remarks that presidents have historically sought larger entertaining spaces, framing Trump’s ballroom as part of a long‑standing pattern of White House modifications [25].

Jan 1 2026 – The White House releases an eight‑week schedule to push the East Wing ballroom through the NCPC and the Commission of Fine Arts, aiming to complete all approvals before any above‑ground construction begins [18].

Jan 2 2026 – President Trump visits a Florida stone‑supplier near Mar‑a‑Lago to select marble for the ballroom, confirming the material will be paid for with his personal funds [11].

Jan 8 2026 – The White House delivers an “information presentation” to the NCPC outlining the 90,000‑sq‑ft ballroom’s purpose, design, and landscaping impacts, initiating the formal review process without a vote [10].

Jan 9 2026 – White House officials tell the NCPC that demolishing the East Wing is cheaper than renovating, citing structural deficiencies and projecting the ballroom’s cost at $400 million, roughly double the original estimate [2][9].

Jan 16‑17 2026 – Trump appoints four new members to the Commission of Fine Arts, restoring a quorum and enabling a Jan 22 meeting to consider the East Wing modernization [23].

Jan 22 2026 – U.S. District Judge Richard Leon questions whether Congress has authorized the $400 million ballroom, suggesting the administration may be end‑running statutory spending limits [7].

Feb 2 2026 – Hand‑picked Fine Arts officials raise concerns about the “immense” scale of the ballroom while generally supporting the president’s vision, noting overwhelmingly negative public feedback [22].

Feb 3 2026 – President Trump posts a new rendering of the ballroom on Truth Social, showing a view from the Treasury Building and emphasizing the project’s $400 million price tag and capacity for 1,000 guests [17].

Feb 19 2026 – The all‑Trump‑appointed Commission of Fine Arts fast‑tracks and unanimously approves both concept and final design for the East Wing ballroom, moving the project a step closer to construction [5][16].

Feb 19 2026 – In a Truth Social post, Trump hails the Fine Arts approval as “great news for America,” claiming the ballroom is ahead of schedule, under budget, and will serve future inaugurations and state visits [4].

Feb 26 2026 – Judge Richard Leon denies the National Trust’s request for a preliminary injunction, calling the legal theories “ragtag” and allowing the $400 million ballroom to proceed; the ruling prompts Trump to celebrate the decision as a victory [30][4].

Mar 5 2026 (planned) – The National Capital Planning Commission is scheduled to meet and vote on the ballroom proposal, the next major federal review after the Fine Arts approval [5][1].

Summer 2028 (projected) – Administration officials set a target to complete the East Wing ballroom by summer 2028, providing a permanent, secure venue for state functions and reducing reliance on costly temporary tents [10][12].