Minnesota Gov. Tim Walz called a special election for a northern state Senate seat to replace former Sen. Justin Eichorn, who resigned last week following his arrest in an underage prostitution sting.

Justin Eichorn, 40, was arrested by Bloomington Police on Monday after they said they had communication with the state senator. Eichorn gained national headlines earlier this week after he co-authored a bill in the Minnesota Senate wanting to define "Trump derangement syndrome" as a mental illness.

After a Minnesota state senator resigned this week over allegations he sought sex from a minor, candidates are announcing their intentions to run for his vacant seat.