DC Representation In Congress

The District of Columbia is on land that was ceded by Maryland.  Why not let DC residents join with the citizens of Maryland in voting for Congress?

1. Add the population of DC to the population of Maryland after every decennial census, and use that total population for redistricting purposes.  This will probably result in adding one seat in the House of Representatives to the Maryland delegation.  The District of Columbia would then be part of the Maryland congressional map.

2. When there is an election for a Maryland seat in the U.S. Senate, allow DC residents to vote in the Maryland election.

3. For presidential elections, count presidential votes from DC as Maryland votes; and eliminate the 3 electors that were assigned to the District of Columbia.