... elections.
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[1] Via Nate Silver (link), the chart shows "all polls from the PollingReport.com database that asked people for their impressions on the Tea Party, and then plotted a smoothed regression line on top of them".
... Ari Melber, Ana Marie Cox and Nate Silver. The steering committee is made up of Micah Sifry, David Corn, Mike Moffo, Mindy Finn (note: affiliated with Patrick Ruffini), Jon Henke and Glenn Reynolds.
That list is a very, very big clue as to what we're dealing with.
If anyone has heard of Jon Henke of The Next Right be sure and see that link. And, see the Reynolds link above for his past efforts...
... tough one. Who do I trust less: Nate Silver, or Pajamas Media and Glenn Reynolds?
Silver says that a bit more than 300,000 turned out for all the tea parties (link). And, he does that by linking almost 400 events in cities across the nation to local reports with their estimates of the turnout.
On the other hand, pajamasmedia.com/instapundit/76884 links to pajamasmedia.com/blog/pjtvs-crowd-...
... CIRCUS HAS LEFT TOWN UPDATE: Nate Silver estimates that all the parties combined got a little over 250,000 people (link); he says there are some other, probably smaller parties he's not counting. His long list of cities includes links to local estimates, which may or may not be off but he's probably within a good percentage of the total. In comments, someone points out that Obama got 200,000...