A lot of them will vote Republican for president in 08, especially if a certain person is the Democrat nominee.
Iowa hasn’t been great for us since the ‘80s, where the GOP was chronically underperforming at the Presidential level. When Reagan carried it by a paltry 53-45% in ‘84 (I mean, more urban IL gave him 56%), Bush, Sr. lost it by a humiliating 55-45% to Dukakis, and got all of 37% (to Clintoon’s 43%) in 1992. Dole got just under 40% in ‘96, and Dubya lost it in 2000 by about 4,000 votes (though it was the best a Republican had done since 1984). And, of course, when he ran for reelection in ‘04, he carried it for the first time in 20 years, and by a still rather paltry 10,000 votes (and still got just under 50%).
Hillary or Obama (from neighboring IL), I would not rule out being able to be potentially competitive here (but it probably doesn’t help them that with the Dems in complete control of state government, led by a liberal Blonde dunce named Chet Culver, that might turn out a net positive for us).