I'd be careful making any long-term Voter ID assessments based on the February 21 primary election turnout

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OK, let's ask ourselves a couple of questions here.

1.  How many people are likely to take the time to vote in a primary election, particularly one in which the only contest is for Dane County Circuit Court Judge, Branch 11.

Well, I'm not sure about Middleton, but the turnout in Madison was 2.4% -- 4,003 voters out of total of 165,312.

2.  Who is most likely to vote in such a primary election?  

Granted, this is not a scientific sampling, but the people I know who voted on February 21st vote in every election.

69.2%

Voter turnout in the 2008 Presidential election.