Rep. Alexandria Ocasio-Cortez (D-NY) said that the Lincoln Memorial Reflecting Pool has become a “swamp” because the GOP doesn’t understand science.
Ocasio-Cortez made the comments in response to journalist Pablo Manríquez, according to The Hill.
“I mean, when you defund science research, when you de — when you don’t really understand the first thing about science,” she said. “Yeah, they talked a bunch of smack, they said that they had to repaint the pool, and now they’ve turned the place into a swamp. They turned it to an actual swamp.”
READ MORE: Critics Torch Interior’s ‘Propaganda’ for Likening Reflecting Pool Algae to Iran’s Navy
President Donald Trump had often railed against the maintenance of the reflecting pool not being up to snuff, and recently renovated it. But instead of making the water beautiful and clear, the pool has turned solid green from algae blooms. The lining is pulling away and floating up, and this week, three dead ducks were found in the reflecting pool.
The deaths of the ducks have led some to speculate that there is blue-green algae in the pool, which is harmful to humans and animals, according to Newsweek. However, aquatic ecology professor Rosalina Stancheva Christova took samples of the water last Tuesday, and determined the algae was a common green variety of the Desmodesmus genus, according to NPR. Desmodesmus is not toxic.
The algae may be harmless, but it is unsightly, particularly in a pool that’s supposed to be crystal clear as a mirror. Part of the issue is that the blue lining that replaced the old liner is too dark.
“The new, darker interior surface is going to absorb more sunlight,” specialist “Swimming Pool Steve” Goodale told NPR. “It is going to result in water that’s warmer, and that ultimately is going to lead to more prolific algae growth.”
The Department of the Interior said that the bloom was due to “residual algae” in the supply lines, according to CNN.
Just as it’s unknown currently what killed the ducks—if it was algae, natural causes or something entirely different—it’s not clear why the liner is peeling off, however some experts have ideas.
Science communicator “The Monarch Diaries,” explored what was perhaps happening in a thread on the social media platform Bluesky. This May, shortly after the renovation process started, they predicted that the lining—Rhino Pipeliner 5000—would be a perfect place to grow algae.
“They’re using Rhino Pipeliner 5000, which freezes as sprayed-on curds almost exactly as it hits the surface. Won’t flow out, flatten, and self-level like standard epoxy or paint would. Under standing water, the orange peel texture is a perfect scaffolding for algae, bacteria, and general bio scum,” they wrote.
They're using Rhino Pipeliner 5000, which freezes as sprayed-on curds almost exactly as it hits the surface. Won't flow out, flatten, and self-level like standard epoxy or paint would.Under standing water, the orange peel texture is a perfect scaffolding for algae, bacteria, and general bio scum
— The Monarch Diaries (@monarchdiaries.bsky.social) 2026-05-20T05:15:26.286Z
In another post they accurately predicted that the liner would start peeling away, but they gave it 5 years rather than a month.
If Rhino Pipeliner 5000 (w custom flag blue tint) is indeed what they're applying, in around 5 years it'll be delaminating and peeling up in massive slimy sheets. So a perfect future metaphor for the Trump yearsinB4 capitol scum pond liner delamination
— The Monarch Diaries (@monarchdiaries.bsky.social) 2026-05-20T05:44:55.270Z
The Monarch Diaries explains that Rhino Pipeliner 5000 is intended for use in pipes, as its name suggests. They say that it “shrinks 1-3% when curing”, perfect for pipes but not for a large pool.
“On a big slab, uh, no it will pull towards the center and delaminate from the substrate at the edges. Plus, applying directly to concrete is a problem. Long story short: Swiss cheese pinhole effect,” they said.
This shit shrinks 1-3% when curing, which in a pipe is exactly what you want. On a big slab, uh, no it will pull towards the center and delaminate from the substrate at the edges.Plus, applying directly to concrete is a problem. Long story short: Swiss cheese pinhole effect. Already flagged.
— The Monarch Diaries (@monarchdiaries.bsky.social) 2026-05-20T05:26:44.551Z
In another thread, they explained that the coating needs to be resprayed within a 4-hour window or it won’t work—but they say that didn’t happen.
“Watching them work, here’s what they did: spray a section, let it sit for hours to days, then spray the next one feathering over the cured edge. This lands FAR outside the 4-hour application overlap window (worse in hot humid weather). The seams never got a chemical weld in the first place,” they wrote.
Watching them work, here's what they did: spray a section, let it sit for hours to days, then spray the next one feathering over the cured edge. This lands FAR outside the 4-hour application overlap window (worse in hot humid weather). The seams never got a chemical weld in the first place. 4/
— The Monarch Diaries (@monarchdiaries.bsky.social) 2026-06-19T17:04:35.373Z
The entire thread is interesting and goes into the physics of what may be happening for those who are interested.
While there is a scientific explanation for what has happened, Trump claimed that the disaster that is the reflecting pool is because of vandals. Six people have been arrested for vandalism, but the government’s own documents show no evidence of vandalism, according to Rolling Stone.
Instead, the supposed “vandals” can be seen in video footage either touching the water or pieces of the plastic liner that have floated to the top of the reflecting pool. Trump has recently accused vandals of cutting the liner with a knife, despite saying the liner could not be cut last month when touting the then-upcoming renovation.
Image via Shutterstock