This report from Nathan Gonzales is pretty interesting -- and surprising:
Former Iowa First Lady Christie Vilsack (D) is likely to take on Cong. Steve King (R) in Iowa's new 4th Congressional District, according to a Democratic source in the Hawkeye State. Vilsack, however, has not yet made a final decision.
Vilsack hails from Mount Pleasant, which is right in the heart of the new second district, where she was rumored to be interested in running for Congress. But with Loebsack staking his claim in the 2nd CD, it looks like she's trying to avoid yet another tragic incident of Sack-on-Sack violence by exploring other options.
The 4th CD, as it stands today, is pretty tough territory: Obama lost it by 44-54, and Kerry got stomped by 39-60 back in 2004. Under the proposed lines, however, it's now a district that Obama lost by only 48-50, and even John "Who Among Us Does Not Love NASCAR?" Kerry held down 44% under these lines. In short, that's still tough terrain for a Democrat, but it's significantly more fertile than before; with King's penchant for letting his freak flag fly and a credible opponent working against him, this could be an interesting race.