Hopefully their representatives would be in DC. With that many people a few of them should be able to hold office (other than the ones who are only in town to hold office representing somewhere else). The needs of the capital and the federal government would need to be met unhindered by state laws. Costs that are there because of the people of Washington DC should be borne by the people of DC ... with some federal help (just like the rest of the country). And just like the rest of the country some of their taxes would go to support the federal government. One vote from somewhere else in the nation ... it may work out to be a wash. But that is a "good reason" to block PR statehood ... several electoral votes and congressional seats going to a community..