SOBERING - The Metropolitan Washington Airports Authority, which oversees air travel at Reagan and Washington Dulles International Airport, declined to comment. Congress has added more than 50 flights at Reagan since 2000, which the MWAA has strongly opposed.
Great article from AXIOS - "Why Congress can add flights to D.C.'s busiest airport"
The Debate
The Capital Access Alliance (CAA) led a full-court press with Congressional allies to add 28 flights at National Airport. The report contained unsupported assertions, talking points, and BOGUS DATA in its report done by the Boston Consulting Group (BCG). BCG has a history of bending analyes into "hit jobs" to support dubious objectives. Their analyses as sloppy at best.
CAA efforts were funded by self-interest groups/corporations, such as Delta Airlines, and powerful Senators Ted Cruz and Mike Lee.
The FAA, MWAA, and GAO raised serious safety and operational concerns about adding flights from National Airport.
Read the CAA/Boston Consulting Group (BCG) Full Report
For more backgound see Dissection of CAA claims supporting extension of the perimeter rule