FYI: *I am NOT being "anti-anyone" in this post!*
This entire post is generic and does not matter who is in the White House.
The first year of a new administration is really difficult to predict as far as people coming in to stay in DC. I know, I lived there during administration changes - many of them in the hotel business - and we'd pull our hair out the year right after inauguration trying to forsee bookings during the holiday season. How many people would come to stay with their friends in DC that worked for the administration, etc. How many people wanted to come simply cos "their side won," etc!
The big thing now could be that the government shutdown was threatened and people simply didn't book...
So, here's my suggestion. If you have AirBnB's auto-pricing tool turned on, turn it off. Set your price as what you think it should be. Don't let the market pull you down to nothing... it'll hurt you in the long run as people will see that the average price in your area is low...
That's just my two cents...ride it out if you can.
Jann