Fact: Maryland had given up land to form the capital, and now refuses to take it back.
Congress had come to her, optimistically, and asked for land to build the sort of city a nation could be proud to be run by. She'd believed in their vision, and given it up relatively willingly. And now…?
DC tried to tell her that taking him back was for the greater good. After all, he said, weren't they founded on the idea that taxation without representation was wrong? The sort of budget she'd need to defend him, and the resulting pressure put upon her by her siblings, was very much secondary to that.
She, politely as possible, sidestepped the question.