[2] Dieken graduated from George-Little Rock Senior High School,[3] and received a bachelor's degree in sociology and criminal justice from Northwestern College in 2012.

[4] Prior to being elected to the Iowa House of Representatives, he worked as a state patrol trooper and a substitute teacher.

[4] He ran as a strong conservative, emphasizing his support for a private school voucher program which incumbent Dennis Bush opposed.

[9] Dieken received an endorsement from Governor Kim Reynolds,[10] and won the June 7, 2022 primary with 55.8% of the vote, beating Bush and Tom Kuiper.

[18] In 2024, Dieken said that cities and counties should set property taxes in defiance of state law, citing the "doctrine of the lesser magistrates.