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Greenwald Corrects Diagram on My Suggestion, Doesn't Note Correction
Actually, this wasn't "your" correction -- another commenter (Vadranor) pointed out this error before you did:
http://tinyurl.com/3z9c2d
And I didn't correct it this morning -- I corrected it last night, as soon as I saw the comments (including yours - just not first) pointing out the error.
The reason I didn't add an update noting the correction is because the corrected graph actually bolsters, not undermines, my point -- that is, the accurate graph reflects even greater GOP control than I originally indicated, since I had forgotten about that 6 months in 2001 when the GOP, under Trent Lott, controlled the Senate.