DC can’t be made into a state. The Founders were pretty clear about that, and when they did the dog and pony last year, they even tried to limit the definition of DC to just include the WH, Mall, Capitol Hill, and SCOTUS, but as I understood it, the actual territory of DC is outlined and cannot be changed without amending the Constitution.
The recently voted DC Constitution (70% approval) clearly defined a federal District of Columbia including all the parts the Founders outlined. The state of DC would be the area outside that boundary that includes almost all the 700,000 people who are paying federal taxes each year and have NO SAY in how that money is being spent. And who also have no desire to be part of Maryland, which also has no desire to have a part of DC.