At this time four years ago, Barack Obama’s campaign had about 30 field offices up and running in Iowa, compared to six offices for Republican presidential candidate John McCain.

Obama’s campaign has had eight Iowa field offices open this summer and is rolling out another 26 offices around Iowa this weekend. So far, Mitt Romney’s campaign has ten Iowa field offices, in addition to the unified Republican headquarters in Urbandale.

After the jump, I compare the field office locations for each presidential campaign, grouped by Iowa Congressional district. Where relevant, I’ve also noted competitive Iowa House and Senate districts near the Obama and Romney field offices, although I doubt either presidential campaign will do much for down-ticket Democratic or Republican candidates.

Polls closed across Iowa at 9 pm, and I will update this post periodically as results come in from around the states. Any comments related to today’s elections are welcome in this thread.

P.S.- As expected, Wisconsin Democrats fell short in their effort to recall Republican Governor Scott Walker.

UPDATE: Results are after the jump.  

Iowa primary elections are coming up next Tuesday, so it’s time for another Bleeding Heartland election prediction contest. A dozen questions are after the jump. There are so many competitive Iowa House and Senate primaries that it was difficult for me to choose. I tried to achieve some geographical balance and cover different types of primaries (open-seat races vs. challenges to incumbents, safe seats for one party vs. swing districts).

To enter the contest, post your predictions as comments in this thread before 7 am 6 pm on June 5. Predictions submitted by e-mail will not be considered. It’s ok to change your mind, as long as you post your revised predictions as an additional comment in this thread before the deadline.

No money’s at stake here, just bragging rights. This isn’t like “The Price is Right”; the winning answers will be closest to the final results, whether or not they were a little high or low. Even if you have no idea, please try to take a guess on every question.

The redistricting process and several Republican retirements have created many pickup opportunities for Iowa House Democrats. The devastating 2010 election left them nowhere to go but up in the lower chamber, where Republicans currently enjoy a 60 to 40 majority. Relatively few sitting House Democrats represent vulnerable districts.

Speaking to activists at the Polk County Democratic convention on March 10, I heard lots of optimism about the House races. After the jump I’ve posted some early thoughts on the seats up for grabs.