McHenry County Sheriff Robb Tadelman will have no GOP primary opponent next year and is so far unopposed for a second term. How else is the 2026 primary shaping up in the county?

March 17 marks the 2026 primary, where McHenry County voters can pull a Democratic or Republican ballot to pick who appears on the ballot come November. All voters, partisan or not, can weigh in on referendum questions.