I predict there will be a lot less.
His video posts about the trial don't seem to get many YouTube views. This seems to trouble him, because he made a video accusing YouTube of manipulating the view counts. Also, for an event that is supposed to have the whole world watching, there's almost zero coverage, either in the mainstream media (which is to be expected) or among conservative bloggers.
The guy is pretty crazy, but I don't want him to be embarrassed when nobody shows up for the trial. I'd go if it were in Chicago. How about a change of venue?
I predict there will be a lot less.
I'm going to predict about 29,986 less (and half those remaining will be curious bystanders).
Well, it is quite possible Manning could generate the largest birther rally ever.
First, he'd have to top the massive crowds that showed up to the steps of the Supreme Court in December, '08 in a show of support of "citizen attorney" Leo Donofrio:
After that, there was Orly Taitz and her legion of followers crowding New York's Times Square in a November '09 attempt to shut down Fox News (If you squint, you can sorta see them in a small, fenced-in area):
So Manning only needs maybe 16 people and I think he'd hold the record for largest demonstration ever demanding proof of Obama's eligibility. There might even be enough Condi Rice masks!