>>reporter: the iowa state bar association says these justices have made every decision based on the law and by voting yes to retain them, it ensures that politics won't get into iowa's courts. >> is the 1%, 88%, 91% -- >>reporter: chair of the fair to partial courts committee guy cook points out that these supreme court justices all received high marks from iowa lawyers on their scwrucialt judicial performance evaluations. >> they're asked to rate the judges on their temperment, their knowledge of the law, how they treat people, fairness of their rulings. >>reporter: the iowa state bar association lawrvelged a website where -- launched a website where voters can access these reviews. they also put up vote yes sign, pressing eye juans to help -- eyeoans to help maintain fair and impartial courts. their message is that the makeup of iowa's courts should never be driven by politics, >> the people who know these judges best, the lawyers who appear before them have said they're all worthy of retention. >>reporter: in des moines, steffey lee, cbs 2 news. >> if you want to look up the judic