I hang a lot with the CFI gang. Here is their Facebook rally info. Tell 'em Charlie the Bright sent you.
"CFI DC Rally to Restore Sanity Gathering on the National Mall
NOTE NEW LOCATION: Our gathering point is the Navy Memorial at the Archives-Navy Memorial Metro Station on the Green and Yellow Lines. Specifically, we will congregate in front of the Navy Memorial on the Pennsylvania Avenue side near 7th Street, NW. (The Metro escalators empty toward this location and the Metro elevator empties onto 7th Street just around the corner.) You'll see out massive (3 ft. by 8 ft. vinyl banner that says Coalition of Reason there!)
WHEN: The timing of the Rally to Restore Sanity gathering on the National Mall is from 12:00 noon to 3:00 pm EST. But, to get a good spot, we will come together at the Navy Memorial earlier, between 10:30 and 11:00 am. Then, at 11:00 am, we will walk as a group, behind the Coalition of Reason banner, the two blocks down 7th to the National Mall, and from there direct ourselves to the best location we can find.
Indicators are that there will be large crowds at this rally, numbering in the tens of thousands. This means Metro stations and trains will be full to capacity. So it is highly recommended that you start out early to be sure you can board a Metro train in time to reach the Archives-Navy Memorial station before 11:00 am and join us."