State Treasurer Doug Ducey has filed paperwork to explore a run for Arizona governor.

The former CEO of Cold Stone Creamery filed the paperwork Tuesday and cast himself as a business-savvy political outsider.

Ducey said his time as treasurer has prepared him to help Arizonans with issues such as reforming and improving the state's economy, tax code and schools. Ducey led the No on 204 campaign last year that defeated a permanent extension of the 1-cent education sales tax.

Other Republicans who have filed paperwork to run for governor include Secretary of State Ken Bennett, former Tempe Mayor Hugh Hallman, state Sen. Al Melvin and ex-Maricopa County Attorney Andrew Thomas.

Democrat and former Arizona Board of Regents Chairman Fred DuVal and Americans Elect party candidate John Mealer have already formally filed as candidates.

The primary election for governor and all other statewide offices plus the Legislature and Congressional seats will be Aug. 26 and the general election will be Nov. 4.