Voters across the state will be turning out Tuesday to decide who will be on the slate for the general election in November.

Major elections across Story County include Iowa House Districts 10, 45 and 46; however, in District 46, incumbent Rep. Lisa Heddens, D-Ames, faces no opposition for her bid for re-election.

Registered voters of the Democratic or Republican party are eligible to vote in the primaries. There will be several polling places on the ISU campus, including Frederiksen Court and Maple-Willow-Larch.

Dani Durham, deputy auditor for Story County, said 15 to 20 percent of the registered voters in the county are expected to turn out for the primary. According to Iowa Code, a candidate must receive the plurality of the vote, and the vote must be over 35 percent to be nominated for a political party.

In District 10, incumbent Rep. Jim Kurtenbach, R-Nevada, will face no opposition from his own party. On the Democratic side, Tracy Runkel and Erik J. Christian will face off to see who will challenge Kurtenbach in the fall.

In District 45, current Rep. Jane Greimann is retiring, which has led to a five-person race for the seat. According to the Story County Auditor’s office, four candidates are on the Democratic slate: Shawn Carter, Tara van Brederode, Bethany Wessel-Kroeschell, and Leonard V. Larsen.

Randy R. Woodbury is the only Republican challenger running in District 45.

Carter issued a press release on Sunday endorsing van Brederode for the seat. However, he said he has not dropped out of the race.

“We have a lot of similarities as far as where things should go,” he said. “If it wasn’t going to be me, it would be her.”

Van Brederode said she felt humbled after Carter’s endorsement. She said she thinks he has brought many important messages to the forefront.

“His endorsement will bring with it some of the student support he’s had,” she said. “It will remind voters to recognize that this campaign has a good deal of momentum.”

Wessel-Kroeschell said she felt her campaign was strong going into the primary.

“We’ve talked to all the likely voters,” she said. “My campaign committee has just about done everything we could do.”

Van Brederode said it is important that voters realize they have the power to set the course for who will be on the slate for the general election.

Jan Bauer, Story County Democrats chairwoman, also said student participation is important in the election process.

“Citizens who vote in primaries determine who will be on the ballot in November,” Bauer said. “So students who spend nine months of the year in Story County should have a direct say in who represents them in the Iowa Legislature.”

— Lindsey Senn contributed to this article.