fun article from the last Iowa caucus.
I'm sure it will help some people understand the convoluted process.
It is bizarre and probably should be put out of its misery
"If you liked the Florida recount, you'll love the Iowa caucuses."
"If you like the Electoral College, you'll love the Iowa Democratic caucuses. Here's how they work. You meet in a room with all the other registered Democrats in your precinct who decide to show up.
It can take hours. First you have to choose local party officers and sit through a lot of talk about party activities. Then the caucus chair asks everybody to express their preferences among the presidential candidates. She tells the Howard Dean people to stand in this corner, the Dick Gephardt people in that corner, the John Kerry people in the other corner, etc. There's also a corner for "uncommitted." You go to your corner. The chair counts how many people are in each group. That's the raw vote."
for the rest..link
http://www.slate.com/id/2094034/