Harmon, who is from Danville, is in his second term as auditor. Previously he represented parts of Boyle County and Casey County in the House of Representatives for 13 years.
Harmon has led audits of the Kentucky Public Retirement System, the Kentucky Law Enforcement Foundation Program Fund, and the state’s unemployment system, among others.
Other Republicans are expected to join Harmon. Current Kentucky Agriculture Commissioner Ryan Quarles has said he’s strongly considering running for governor in 2023. Former United States ambassador to the United Nations Kelly Craft is said to also be exploring the idea.
Governor Andy Beshear has said he plans to seek re-election.