The Wisconsin primary.

Here's some analysis of the Wisconsin primary.

Wisconsin has lots of blue-collar, older and female voters who form the backbone of Hillary Clinton's base.

The "backbone" of the "base"? I wish people would picture their own metaphors for the sake of us readers who see the images in words. I don't like "backbone of the base." If you want to talk about the "base" with a bone metaphor, how about Wisconsin has lots of blue-collar, older and female voters who form Hillary Clinton's pelvis?

It also has plenty of college students, progressives and upper-income independents who favor Barack Obama.

I know, I live in that town. I'm returning there over the weekend — not just to vote — and I'll be interested to see how active things are.

Obama will be in Madison today. As his website puts it: "Obama will be in Madison, WI to talk to supporters at the Kohl Center on February 12th." "Talk to" is funny, because the Kohl Center is a huge arena, seating over 17,000 when it's set up for a basketball game. I'm sorry I'm going to miss that. (If you're going, take pictures and send me links to your Flickr pages and your blogs!) Will Obama pack the Kohl Center? That will be one hell of a rally if the place fills up.

ADDED: If you're at the big rally tonight and can get on the WiFi, comment here and tell us about it while it's going on.