Update: 11:08ET 100,000 people minimum.
Update II:People on the ground are reporting 1/2 million + marchers. That's almost hard to believe but if it's even remotely accurate, this rally is huge by any calculation.
UpdateIII: ABC news reporting 1.5 MILLION, WOW!
Update IV:Michelle Malkin says it's 2 million!
Here's the time lapse video, you be the judge.