It is difficult to logically explain what it is, because in Washington they are very strict about the launch of drones (at least civilian ones).
In some cities in the state, any such launch is expressly prohibited, and the District of Columbia is a special closed airspace.
Also, people write that if someone tries to violate this ban, they will face the launch of military aircraft to intercept, and subsequently with a very serious lawsuit. So most likely it was not a drone of civilians.
As for the fact that it could be a military aircraft, or even some kind of secret military drone, then the question arises of what he could do in the sky over Washington and how he could move completely silently. Some very advanced technology?
Many people believe that this video is real and write that they themselves have seen something similar in the sky, including in New York, Virginia, Florida and other US states.
A version was proposed that this is a reflection of something projected from the earth, but it was refuted, indicating that then one could see a beam going into the sky from the source of the projection.
The most popular hypothesis for all these videos with lights in the sky is that they are just Chinese lanterns. But towards the middle of this video, you can see that all three lights disappear into the sky almost simultaneously. Three Chinese lanterns go out at the same time?