In 2022, he pleaded guilty to a number of federal tax crimes arising from his ownership of a waste-recycling business, and was sentenced to 33 months in prison.

[5] Shibilski faced no opposition for the Democratic nomination and went on to defeat the Republican candidate, Donna Rozar, in the May 2 special election.

Doyle was described as upset that Shibilski was connected to a mailing which accused then-Assembly candidate Julie Lassa of "hooking up" with former Senate majority leader Charles Chvala, who was at that time facing criminal charges.

Doyle and Shibilski had both supported Lassa's opponent, Stevens Point attorney Alex Paul, in the Senate primary.

[11] Shibilski did not immediately take another job, but three months later he was hired as vice president of Wisconsin public finance for Stifel, Nicolaus and Company.

[12][13] Shibilski was reported to have considered a run for United States House of Representatives in Wisconsin's 7th congressional district in both 2010 and 2012, but did enter either race.