OK, when I looked at Valdis Krebs post on the overlap between bundlers, I felt that he hadn’t done a very good job on the numbers. I still feel that way, and spent some time at breakfast today downloading bundler data from the Public Citizen website, and doing some fast analysis on it (honestly, I spent more time converting the HTML to csv). Here is the Excel spreadsheet, so you can play with the data yourself.

Here’s some basic data:

506 unique Obama bundlers
528 unique Kerry bundlers
60 overlaps

1094 total bundlers

5.5% pct overlap/total
10.2% pct Kerry that overlaps
10.6% pct Obama that overlaps

725 unique McCain bundlers
432 unique Bush04 bundlers
125 overlaps (not 128 as Valdis found – don’t know where his data came from)

1282 total bundlers

9.8% pct overlap/total
22.4% pct Bush04 that overlaps
14.7% pct McCain that overlaps

So roughly twice as many GOP bundlers overlapped from Bush04 to McCain. Draw your own conclusions – I’m not sure what I think of that, and whether it’s useful information.

But I’ll add to the dataset over the next week and we’ll play with it some more.