A Des Moines Register poll shows more than one-third of voters want to remove three Iowa Supreme Court justices who joined a unanimous ruling that legalized gay marriage.

The poll published Sunday found that 37 percent of likely voters intend to vote to remove all three justices and 34 percent say they will vote to retain all the judges. Another 10 percent plan to retain only some justices, 11 percent don't intend on vote on the judges and 8 percent aren't sure how they'll vote.

If Chief Justice Marsha Ternus and justices David Baker and Michael Streit lose retention votes, it will be the first time voters removed an Iowa Supreme Court justice.