The Communist Party and La raza had alot to do with organizing the scumbag illegals. I think there are enough conservative bloggers and other orgs. to stage the march.
Logistics for many would be a problem if it is limited to DC. The sheer fact that the numbers of illegals within the large cities must have been the greatest benefit to the organizers for the success. We need the same numbers but ---- how do you get people off their butts and in the streets?