Next year’s campaign in Iowa Senate district 37 will be closely watched statewide and may draw some national attention. Republican State Representative Kent Sorenson has decided to challenge first-term Senator Staci Appel instead of seeking re-election to Iowa House district 74. The socially conservative Sorenson made a splash this summer with his open letter imploring Senator Chuck Grassley to provide “principled and bold leadership” to advance the Republican Party platform. Appel is assistant Senate majority leader and chairs the State Government Committee. Her husband is one of the seven Iowa Supreme Court justices who unanimously struck down our Defense of Marriage Act in April.

Republican blogger Craig Robinson is upbeat about Sorenson’s chances.

My opinion on this matchup hasn’t changed since Robinson first discussed the prospect in May: Bring it on.

Conservative blogger Craig Robinson argued last week that “Iowa Republicans Have Plenty of Opportunity in the State Senate” in 2010. The GOP has almost nowhere to go but up. Republicans currently hold 18 of the 50 seats in the Iowa Senate, fewer than at any previous time in this state’s history. After making gains in the last four general elections, Democrats now hold 19 of the 25 Iowa Senate seats that will be on the ballot in 2010. Also, several Democratic incumbents are in their first term, having won their seats during the wave election of 2006.

To win back the upper chamber, Republicans would need a net gain of seven seats in 2010, and Robinson lists the seven districts where he sees the best chances for the GOP.

I generally agree with John Deeth’s view that only a few Senate districts are strong pickup opportunities for Republicans next year. Winning back the upper chamber will take the GOP at least two cycles, with redistricting likely to create who knows how many open or winnable seats in 2012.

After the jump I’ll examine the seven Iowa Senate districts Robinson views as worthwhile targets as well as one Republican-held district that Democrats should be able to pick up. Here is a map (pdf file) of the current Iowa Senate districts.