Public Citizen's clients challenge Trump's arch authority; the administration invokes a 1925 law
Four plaintiffs represented by Public Citizen seek to stop the proposed Memorial Circle arch without new congressional authorization. The administration invokes a 1925 bridge law and disputes the grounds for suit. A new injunction motion is pending, with the government's response due October 28.
Case period:
Published by The Dispute Index editorial teamPublished Updated
Overview
Four plaintiffs represented by Public Citizen seek to stop construction of Trump's proposed Memorial Circle arch without new congressional authorization. The administration invokes the 1925 Arlington Memorial Bridge Act and disputes the legal basis for the suit. After an October 21 government notice said construction could begin as early as November 5, the plaintiffs moved for a preliminary injunction. The government's response is due October 28.
Read the full background
The government's June 17 memorandum argues that the 1925 Act authorizes monumental features and design changes, and that later statutes do not bar the project. The plaintiffs argue that the old bridge authorization does not cover this arch and that Congress must authorize it. The filings present opposing arguments over the scope of the 1925 law.
An April 8 consent order requires the National Park Service to give at least 14 days' notice on the court docket before construction begins, and bars it from authorizing construction to begin before it posts notice of that authorization on its planning website. The same order denied the plaintiffs' first injunction motion without prejudice.
On October 21, citing that order, the government filed a notice (opens in a new tab) saying the National Capital Planning Commission is scheduled to consider final site and building plans for the arch on November 5. If the commission approves them and the Interior Department then authorizes construction, work could begin once the Park Service posts notice of that decision, which the government said could happen as early as November 5. November 5 is the earliest start the notice describes, not a set groundbreaking date.
The plaintiffs filed a new injunction motion on October 22 and asked for a ruling by November 4. On October 23, Judge Tanya S. Chutkan set noon on October 28 as the deadline for the government's opposition and October 30 for any reply, according to the court docket (opens in a new tab). As of that order, the court had not ruled on the government's motion to dismiss or on the parties' cross-motions for summary judgment.
People in this case
Donald TrumpDirectly involved
Timeline
4 timeline entries on this page. Dates: June 17, 2026 to October 23, 2026
June 2026
Federal defendants invoke the 1925 bridge law
Source release
Their memorandum defends statutory authority and challenges the plaintiffs' grounds for suit.
[01]United States Department of Justice
The government invokes the 1925 Act and separately contests jurisdiction, standing, ripeness and the availability of the plaintiffs' legal claims.
Federal defendants defend statutory authority for the Memorial Circle arch · United States Department of JusticeLemmon v. Trump, ECF 44-1, sections III.C-D, pages 28-35
October 2026
Government notice says arch construction could start as early as November 5
Source release
Filed under the April 8 consent order, the notice says construction could begin if the planning commission approves final plans at its November 5 meeting, the Interior Department then authorizes the project and the Park Service posts notice of that decision.
[02]United States Department of Justice
Source excerpt
NPS may publish such notice as early as November 5, 2026, and construction could commence as early as November 5, 2026.
Filed under the court's April 8, 2026 consent order. The notice ties any start to a National Capital Planning Commission approval, an Interior Department decision authorizing construction and a National Park Service notice of that decision.
Federal defendants give notice that arch construction could begin as early as November 5 · United States Department of JusticeLemmon v. Trump, ECF 63, notice filed October 21, 2026, page 1[03]United States District Court for the District of Columbia
Source excerpt
Defendants shall respond to Plaintiffs' 64 Motion for Preliminary Injunction by October 28, 2026 at 12:00 p.m. Plaintiffs shall file their reply, if any, by October 30, 2026.
Court docket as mirrored by CourtListener (RECAP), current through the October 23, 2026 minute order, which sets the briefing schedule on the plaintiffs' new injunction motion. As of that order, the docket shows no ruling on the government's motion to dismiss or the cross-motions for summary judgment.
Lemmon v. Trump, No. 1:26-cv-00544 (D.D.C.): docket · United States District Court for the District of ColumbiaDocket entries 26 (consent order, April 8, 2026), 63 (notice, October 21, 2026), 64 (motion for preliminary injunction, October 22, 2026) and 65 (joint proposed briefing schedule, October 23, 2026), and the minute orders signed October 22 and October 23, 2026Plaintiffs seek an injunction before a possible November 5 start
Source release
Their motion quotes the October 21 notice, argues that the arch needs congressional authorization and asks for a ruling by November 4.
[04]Public Citizen
The motion quotes the government's conditional November 5 construction notice and argues that new congressional authorization is required.
Plaintiffs seek an injunction before possible Memorial Circle arch construction · Public CitizenLemmon v. Trump, ECF 64-1, pages 8-10 and conclusion[03]United States District Court for the District of Columbia
Source excerpt
Defendants shall respond to Plaintiffs' 64 Motion for Preliminary Injunction by October 28, 2026 at 12:00 p.m. Plaintiffs shall file their reply, if any, by October 30, 2026.
Court docket as mirrored by CourtListener (RECAP), current through the October 23, 2026 minute order, which sets the briefing schedule on the plaintiffs' new injunction motion. As of that order, the docket shows no ruling on the government's motion to dismiss or the cross-motions for summary judgment.
Lemmon v. Trump, No. 1:26-cv-00544 (D.D.C.): docket · United States District Court for the District of ColumbiaDocket entries 26 (consent order, April 8, 2026), 63 (notice, October 21, 2026), 64 (motion for preliminary injunction, October 22, 2026) and 65 (joint proposed briefing schedule, October 23, 2026), and the minute orders signed October 22 and October 23, 2026Court sets October 28 deadline for the government's response
Judge Tanya S. Chutkan set the briefing schedule the parties jointly proposed: the government's opposition to the new injunction motion is due at noon on October 28, and any reply from the plaintiffs by October 30.
[03]United States District Court for the District of Columbia
Source excerpt
Defendants shall respond to Plaintiffs' 64 Motion for Preliminary Injunction by October 28, 2026 at 12:00 p.m. Plaintiffs shall file their reply, if any, by October 30, 2026.
Court docket as mirrored by CourtListener (RECAP), current through the October 23, 2026 minute order, which sets the briefing schedule on the plaintiffs' new injunction motion. As of that order, the docket shows no ruling on the government's motion to dismiss or the cross-motions for summary judgment.
Lemmon v. Trump, No. 1:26-cv-00544 (D.D.C.): docket · United States District Court for the District of ColumbiaDocket entries 26 (consent order, April 8, 2026), 63 (notice, October 21, 2026), 64 (motion for preliminary injunction, October 22, 2026) and 65 (joint proposed briefing schedule, October 23, 2026), and the minute orders signed October 22 and October 23, 2026
Response record
Responses
Choose one response filter, or select All responses to see the full record.
2 responses. Newest first.
Public CitizenOrganization representing the plaintiffs, speaking through lawyer Wendy LiuDirectly involvedBefore this statement
Its lawyer Wendy Liu explains the renewed injunction request.
"The law is clear. Trump’s arch cannot move forward without Congressional approval"
CondemnedCase context: Public Citizen's clients challenge Trump's arch authority; the administration invokes a 1925 law
Full statement and sources
Public Citizen argues construction cannot proceed without Congress.
After the statement
The motion asks the court to stop construction while the case proceeds.
Public Citizen asks the court to halt arch construction · Public CitizenWendy Liu quotationWhy this label?
The case concerns constructing the proposed Memorial Circle arch without new congressional authorization. Public Citizen argues construction cannot proceed without Congress.
This label describes the statement's response within the context above.
United States Department of JusticeFederal defendants represented by the Department of JusticeBefore this statement
The memorandum argues that transferring the commission's functions and project land to the National Park Service did not undermine the 1925 Act's authorization.
"In sum, Plaintiffs have failed to establish that Defendants lack statutory authority to build two large columns surmounted by statues on Memorial Circle."
Defended or excusedCase context: Public Citizen's clients challenge Trump's arch authority; the administration invokes a 1925 law
Full statement and sources
Federal defendants defend existing statutory authority for the arch.
After the statement
They argue that the plaintiffs cannot use an ultra vires claim to contest connecting the columns into an arch.
Federal defendants defend statutory authority for the Memorial Circle arch · United States Department of JusticeLemmon v. Trump, ECF 44-1, sections III.C-D, pages 28-35Why this label?
The case concerns constructing the proposed Memorial Circle arch without new congressional authorization. Federal defendants defend existing statutory authority for the arch.
This label describes the statement's response within the context above.
Sources
(5)
Original text
Plaintiffs seek an injunction before possible Memorial Circle arch construction
Relevant passage: Lemmon v. Trump, ECF 64-1, pages 8-10 and conclusion
About this source
The motion quotes the government's conditional November 5 construction notice and argues that new congressional authorization is required.
- Published
- Accessed
Original text
Federal defendants give notice that arch construction could begin as early as November 5
Relevant passage: Lemmon v. Trump, ECF 63, notice filed October 21, 2026, page 1
Excerpt
"NPS may publish such notice as early as November 5, 2026, and construction could commence as early as November 5, 2026."
About this source
Filed under the court's April 8, 2026 consent order. The notice ties any start to a National Capital Planning Commission approval, an Interior Department decision authorizing construction and a National Park Service notice of that decision.
- Published
- Accessed
Original text
Lemmon v. Trump, No. 1:26-cv-00544 (D.D.C.): docket
Relevant passage: Docket entries 26 (consent order, April 8, 2026), 63 (notice, October 21, 2026), 64 (motion for preliminary injunction, October 22, 2026) and 65 (joint proposed briefing schedule, October 23, 2026), and the minute orders signed October 22 and October 23, 2026
Excerpt
"Defendants shall respond to Plaintiffs' 64 Motion for Preliminary Injunction by October 28, 2026 at 12:00 p.m. Plaintiffs shall file their reply, if any, by October 30, 2026."
About this source
Court docket as mirrored by CourtListener (RECAP), current through the October 23, 2026 minute order, which sets the briefing schedule on the plaintiffs' new injunction motion. As of that order, the docket shows no ruling on the government's motion to dismiss or the cross-motions for summary judgment.
- Published
- Accessed
Official statement
Public Citizen asks the court to halt arch construction
Relevant passage: Wendy Liu quotation
About this source
Counsel for the plaintiffs argues that congressional authorization is required before construction.
- Published
- Accessed
Original text
Federal defendants defend statutory authority for the Memorial Circle arch
Relevant passage: Lemmon v. Trump, ECF 44-1, sections III.C-D, pages 28-35
About this source
The government invokes the 1925 Act and separately contests jurisdiction, standing, ripeness and the availability of the plaintiffs' legal claims.
- Published
- Accessed
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- Public Citizen's clients challenge Trump's arch authority; the administration invokes a 1925 law
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The Dispute Index. "Public Citizen's clients challenge Trump's arch authority; the administration invokes a 1925 law". First published: 2026-10-25. Last updated: 2026-10-25. https://disputeindex.com/cases/trump-memorial-circle-arch-congressional-authorization