One of the predominant myths about D.C. is that the federal government fully compensates the city for any costs or lost revenue it incurs as the federal district. In reality, D.C. residents bear a heavy fiscal burden — to the tune of about $1 billion a year — because of a structural deficit that Congress could fix. Rep. Darrell Issa (R-Calif.), the chairman of the House Oversight and Government Reform Committee, clearly understands this, making news last week by stating that he is open to a measure that would shrink this deficit . What about House Minority Whip Steny Hoyer ? It was disappointing enough that the powerful Maryland Democrat came out immediately against Issa’s proposal. Did he have to do it by evoking the myth that won’t die?