In addition, the Pentagon parking lots will be even more busy than usual from the 15th through the 20th (don't go there). On the 20th, Rt. 27 and Rt. 110 will be closed around the Pentagon as will Boundary Channel Drive.
Metro WILL be your friend...
Bumpity bump bump bump
Thank you for the heads up- re: DC parking. Duly noted and printed out for safe keeping.