D.C.'s 700,000+ residents occupy a unique constitutional gray zone: they vote for President and local officials, but have no voting representation in Congress.
Article I, Section 8 gives Congress exclusive legislative authority over the "District." The Framers wanted a neutral federal seat not beholden to any state. But they didn't anticipate a permanent population larger than Wyoming or Vermont.
H.R. 51 / S. 51 (Washington, D.C. Admission Act) passed House (2021, 2023); stalled in Senate. Would create "Washington, Douglass Commonwealth" with 2 Senators + 1 Representative, shrinking federal district to core monuments.
Until statehood or a constitutional amendment, D.C. remains the only national capital in a democracy where citizens pay federal taxes but lack full congressional voice—"Taxation Without Representation" on every license plate.