A poll released Wednesday shows a majority of Iowans would retain Iowa Supreme Court Justice David Wiggins.

Fifty-three percent of respondents to the Hawkeye Poll conducted by researchers at the University of Iowa said they want to retain Wiggins, while 30 percent said they would vote to remove Wiggins.

While earlier polls showed the effort to oust Wiggins failing, the 23 point lead is the largest yet.

Conservatives angry at the state Supreme Court's unanimous 2009 ruling which brought gay marriage to the Midwest have targeted Wiggins for ouster. In 2010, voters axed three judges from the bench. The remaining three justices are up for retention votes in 2016.

The effort to oust Wiggins is spearheaded by conservative Bob Vander Plaats, the president of the FAMiLY LEADER. The National Organization for Marriage (NOM) is also involved. According to the Des Moines Register, the two groups have spent about $250,000 on the race.

Groups supporting Wiggins' retention have spent about $150,000.

The Hawkeye Poll also found a large number (17%) of respondents remain undecided.

ā€œPeople will say they don't know because they don't want to give you an answer,ā€ Fred Boehmke, an associate political science professor at the University of Iowa, told the Iowa City Press-Citizen. ā€œI would think there's a good chance don't knows will either not vote in this particular race or probably a majority are going to go against [Wiggins' retention].ā€