I'm guessing that fellow who just released a book about it must be royally pissed at this.
The fact that it didn't turn around and hover over the White House means that just maybe the aliens in their ship of frozen nitrogen got Trumps message.
We are a lonely species out on the far reaches of a spiral arm of this galaxy. All we can do is look up to the sky in hopes that there is someone else out there in the cosmos willing to comfort us in our loneliness.
If we survive our propensity for alienating each other then just maybe some other from of life out in the cosmos will come to comfort us.
The fact that a group of otherwise sane individuals would put on running shoes and drink the coolaid and then wait for the mother ship in their "resting beds" simply means that otherwise sane humans can be lead to insanity by domineering alpha jerks in a great many ways. 2016 proved that.
We certainly have not proven that there is no other advanced life out there because this piece of ice behaved in a very strange way as if it was under some form of propulsion control vectoring. If it was off gassing nitrogen in large quantities because it was too close to our sun then the math necessary to surmise the trajectory variances that it took is already a theoretically know factor.
So we have nothing to worry about with aliens invading our planet or country. Besides, having a commander in Chief with bone spurs almost certainly would assure an alien victory should the chunk of ice turn around and decide to hover over the White House in 2024 or '25. The new space force doesn't have enough time to build a space wall adequate to keep them out!