They were expecting a few more folks to show up:
http://www.freerepublic.com/focus/f-news/1571036/posts
DETAILS:
On Saturday, Feb. 4, tens of thousands will travel from across the country to the national seat of government with a single demand: Bush Step Down And Take Your Program with You. The crowd will rally beginning at 11am, then encircle the White House at 2 p.m.