Yesterday, I brought you the results of the Quinnipiac University Poll with Iowa Republicans. They have now released their survey of Democrats -- done between November 16th and 22nd of a random sample of 543 Iowa Democrats, with a margin of error of 4.2 points.
Hillary Clinton is leading Bernie Sanders in Iowa by about 9 points. It looks to me like that is due to Clinton's very strong support among women. Sanders leads among men by 9 points, but that is eclipsed by Clinton's 21 point lead among women. This bodes well for Clinton, since women usually vote in larger numbers than men.