On Thursday in Iowa, Republicans drew roughly 108,000 voters for their caucus and Democrats 239,000. This seems to support the Democrats' claim that about 40% of their caucus participants were independents. With that kind of attraction by independents to the Democratic party, is Iowa now a Democratic lean state? It would certainly make sense with the shift, especially in that region. The average of general election polls in Iowa show the Democrats with 7 point lead.
I think Iowa is still swing state territory, but it may lean a little more Democratic than Republican. A lot of it will also depend on who the Republican candidate is.