Former presidential advisor Roger Stone claimed that there's a satanic "portal" over the white house that's visible day and night. The main evidence being a short video, and then three photos, the above one, then a similar (but not the same) more zoomed-in photo.
Then one more showing a faint patch
The first two photos are taken from the earthTV webcam of the White House. Notice there's several other "portals" visible.
These, of course, are just lens flares - internal reflections in the camera - just like the one in the sky. We can see both the one in the sky, and the lower ones move with the camera here (the White House is dark in this video)
The detail of the lens flare shows a pattern of dots.
This is possibly from a sensor reflection, where you sometimes get the dot pattern from the focus pixels, like here:
This varies by camera.
The video shown is from a rainy day. The raindrops on the camera cover create familiar shapes that we've seen in a variety of supposed "supernatural" videos.
But again, this is simply a (wet) camera effect known as "water drop caustics", discussed in other threads: https://www.metabunk.org/threads/explained-colorado-man-photographs-flying-jellyfish-like-‘critters’-water-on-lens-caustic-bokeh.5211/
The water on the cover bends and diffuses the light, the hexagonal shape comes from the shape of the camera aperture.
The photo taken from ground level seems to just show a cloud, possibly illuminated by the flag spotlight.