The posts of shadow United States senator and shadow United States representative are held by elected or appointed government officials from subnational polities of the United States that lack congressional vote. While these officials are not seated in either chamber of Congress, they seek recognition for their subnational polity, up to full statehood. This would enfranchise them with full voting rights on the floor of the US House and Senate, alongside existing states. As of 2021, only the District of Columbia and Puerto Rico currently have authorized shadow delegations to Congress.

The United States House of Representatives is the lower chamber of the United States Congress, with the Senate being the upper chamber. Together, they comprise the national bicameral legislature of the United States. The House is charged with the passage of federal legislation, known as bills; those that are also passed by the Senate are sent to the president for signature or veto. The House's exclusive powers include initiating all revenue bills, impeaching federal officers, and electing the president if no candidate receives a majority of votes in the Electoral College.