I find it a natural partnership.
I don't find that thought unique. The Orioles were the ballclub of the nation's capital for quite a few decades. D.C. and Baltimore are part of one huge concrete blob.
As a man in my thirties, I don't expect to see a NBA franchise in Baltimore in my lifetime. Why? The Wizards are pretty much right there.
D.C. is united. In name, why not go further? Balwash Corridor. My countless vote goes for DC Baltimore United.