Eichorn ran for the
Minnesota House of Representatives in District 5B in
2014, losing to incumbent
Tom Anzelc. He was reelected in
2020, but opted to run in District 6 in
2022, where he won by nearly 30 points. On March 17, 2025, Eichorn was one of five Republican authors of a bill, SF2589, that would designate "
Trump derangement syndrome" as an officially recognized mental illness in Minnesota.
Arrest and resignation On March 17, 2025, during a
sting operation, Eichorn was arrested in
Bloomington, Minnesota, on suspicion of soliciting a minor for sex. The arrest occurred after he allegedly sexually solicited a detective posing as a minor. On March 20, Eichorn submitted his letter of resignation, effective immediately. In an April 29 special election,
Keri Heintzeman was elected to the Senate seat Eichorn vacated.
Charges and trial On March 20, 2025, Eichorn was charged in federal court for attempted coercion and enticement of a minor. After appearing in court, he was released on his own recognizance pending placement in a
halfway house. On March 23, prosecutors asked a judge to return Eichorn to jail after he prevented investigators from examining one of his laptops. On April 21, Eichorn pleaded not guilty at his federal arraignment hearing. He is set to stand trial on June 1, 2026. ==Personal life==