Iowa's Supreme Court ruled in a 7-0 decision to legalize gay marriage in 2009. Judges in Iowa are appointed by the Governor and are subject to being recalled on a vote by the population. The Judiciary are theoretically independent but in Iowa specifically and the U.S. in general, independence, or in other words, doing what a judge is supposed to do, has now become politcal.
Yesterday three sitting judges, include the Chief Justice were recalled for that one decision. Applying the law or ruling on the constitutionality of a decision can now result in a judge being removed for no reason other than politics.