Trump touts “nanobubbler” algae fix for Lincoln Reflecting Pool, takes shot at Barack Obama
Trump a memo from Greg Wischer to Interior Secretary Doug Burgum credits new technology with clearing algae that plagued the pool since 1922.
WHITE HOUSE — Donald Trump shared a memo crediting advanced nanobubbler technology with clearing algae from the Lincoln Reflecting Pool by mentioning the source (see truthsocial) on a Truth Social post on July 5, 2026 at 10:57 AM EST.
Here is the full post on [truthsocial]: “From Greg Wischer CC:Doug Burgum As noted on Sunday, the advanced nanobubbler technology very effectively killed the algae that has plagued every Lincoln Reflecting Pool reopening-most infamously Obama’s reopening-since 1922. The Reflecting Pool water is crystal clear, and our National Park Service team is now vacuuming up the dead algae resting on the bottom of some parts of the Reflecting Pool—just like the destroyed Iranian Navy resting on the bottom of the Persian Gulf. The vacuuming is the final maintenance step after refilling the pool, and it will be complete in a few days. Already, the section of the Reflecting Pool closest to the Lincoln Memorial has been vacuumed up, and the beautiful American Flag Blue coating on the bottom of the pool can be seen clearly. Previous administrations-most notably under Obama-failed to maintain the Reflecting Pool, and after refilling the pool, the water would quickly become murky and thick with massive clumps of algae floating on the surface. The photos below show how the nanobubbler technology and vacuuming have been incredibly effective, making the water crystal clear with the American Flag Blue coating shining brightly on the bottom of the pool. As our National Park Service team noted, the Reflecting Pool is now so “blue” that the Fake News Media, which has been staked out at the Reflecting Pool for weeks, has fled!”
The memo, written by Greg Wischer and copied to Interior Secretary Doug Burgum, describes the nanobubbler system as having killed algae that has troubled every reopening of the pool since 1922. Wischer singled out Barack Obama‘s administration as having failed to maintain the Reflecting Pool, claiming the water would turn murky with massive clumps of algae floating on the surface after refilling. The National Park Service now oversees the cleanup under Burgum’s Department of the Interior.
Wischer wrote that the pool water is “crystal clear” and that crews are vacuuming dead algae from the bottom. The section closest to the Lincoln Memorial has already been cleaned, revealing what the memo calls an “American Flag Blue” coating on the pool floor. The vacuuming is expected to be complete within a few days, the memo stated.
President Donald J. Trump's Truth Social post is displayed at the White House on 07/05/2026.
© copyright Zenger.News
The memo also drew a military comparison, likening the dead algae on the pool bottom to “the destroyed Iranian Navy resting on the bottom of the Persian Gulf,” a reference to recent U.S. military operations against Iran. The post closed with an assertion that the pool now looks so blue that media crews stationed nearby have departed.
The attached image shows the full text of the memo on a white background. No photographs of the pool or the nanobubbler technology were included in this particular image, though the memo references photos “below” that were not visible in the document itself.
In the last 30 days, 44 of 513 Trump posts on Truth Social addressed the topic of domestic policy, according to Zenger analysis.
Source: Zenger real-time database of all Truth Social posts.
Note: Chart generated on July 5, 2026 at 11:07 AM EST
Source: Zenger analysis
Note: Table generated by https://zenger.news on July 5, 2026 at 11:07 AM EST
Source: OpenTopoMap / Natural Earth – Iran
Note: Map generated by NewsFindr for Iran on July 5, 2026 at 11:13 AM EST