Photos posted on Truth Social show the Lincoln Reflecting Pool appearing blue and clear, an image the White House and Interior Department highlighted. The administration shared the images alongside a U.S. Park Police notice seeking help identifying a person linked to alleged damage at the site.
The Interior Department circulated a memo inside the agency crediting an outreach effort using “advanced nanobubbler technology” and National Park Service follow-up work for the pool’s cleared appearance. Officials say crews are finishing vacuuming dead algae after the pool was refilled.
Lincoln Reflecting Pool: What President Trump posted and photos of the pool
President Donald Trump shared photos showing the Washington Monument reflected in water that appears clear across the pool that stretches from the Lincoln Memorial. The Truth Social post included a copy of a U.S. Park Police notice asking for tips or footage to identify a person of interest in a Destruction of Government Property case.
The images were the immediate news hook: they show a clear surface and the administration highlighted that outcome publicly. The photos and the Park Police notice were packaged together in the post, drawing attention to both the cleanup and the concurrent investigation.
Interior memo: advanced nanobubbler technology and NPS cleanup
An Interior Department memo circulated inside the agency quoted Greg Wischer, identified in the memo as founder of Dei Gratia Minerals and an Interior deputy assistant secretary for land and minerals management, saying “the advanced nanobubbler technology very effectively killed the algae that has plagued every Lincoln Reflecting Pool reopening.”
The memo described National Park Service teams performing vacuuming as the final maintenance step after the pool was refilled and said crews were removing dead algae from parts of the pool bottom. The Interior materials described a visible blue coating on the pool floor and said the section nearest the Lincoln Memorial had already been vacuumed.
Those are claims by Interior and the memo’s cited author, and they are presented here as the department attributed them. This report does not independently verify the technology’s effectiveness; further technical assessment and third-party confirmation would be needed to evaluate long-term results.
Vandalism probe and repair options
The Truth Social post included a U.S. Park Police notice asking the public to help identify an individual tied to a Destruction of Government Property investigation connected to the Reflecting Pool. Authorities asked anyone with tips, photos or video to contact investigators as they pursue leads.
Interior Secretary Doug Burgum, in remarks on ABC’s This Week, said crews found what he described as “multiple gashes that add up to 350 feet” along pool edges. Burgum said repairs are expected to be doable and that crews may not need to drain the entire 6.75 million-gallon pool to complete fixes.
He said some cutting occurred at the pool edge and that a partial drain could allow repair teams to address damage more quickly than a full emptying. Officials stressed the vandalism allegation remains under investigation and that repair plans could change based on what investigators find.
Current maintenance status and timeline
Interior and National Park Service materials say the pool was refilled and that vacuuming of dead algae across the bottom is the final maintenance step before the site is declared fully cleared. The memo set the vacuuming finish window at a few days for the immediate work underway.
Officials note the Reflecting Pool holds roughly 6.75 million gallons and that vacuuming is being done in sections. If repair work tied to alleged vandalism requires a wider access area, some tasks could extend the active work timeline beyond the vacuuming completion estimate.
National Park Service teams are balancing algae removal with any necessary edge repairs so the pool can remain safe and presentable for planned public events. The department framed the cleanup as part of America 250-related outreach work, but said further repairs would follow standard asset-repair procedures depending on severity.
What to watch next
Expect updates from the U.S. Park Police about the destruction investigation, including any public notices seeking tips, surveillance footage or witnesses. Watch for National Park Service or Interior Department announcements clarifying whether repairs will require only partial draining or a complete emptying of the pool.
Observers should also look for independent technical assessments or third-party verification of the nanobubbler technology’s effectiveness over time. The Interior memo credits the technology for killing algae before NPS crews removed the remnants; that attribution remains Interior’s claim until outside analyses are published.
Finally, monitor statements from Interior and the National Park Service about long-term monitoring, algae-prevention plans and any changes to surveillance or maintenance protocols around the pool that may be instituted if the vandalism probe yields suspects or identified vulnerabilities.
Source attribution: This update is based on photos posted on President Trump’s Truth Social account, an Interior Department memo circulated inside the agency, a U.S. Park Police notice, statements from Interior Secretary Doug Burgum, and reporting by Fox News. The Fox News article referenced: Fox News — Trump shares news of ‘crystal clear’ Reflecting Pool, calls for vandalism suspect’s arrest. The nanobubbler effectiveness claims are attributed to the Interior memo and have not been independently verified here.
