As in most states, in Arizona the chief elections office is the Secretary of State.
The two Republican candidates (so far) are State Sen. Michele Reagan and businessman (and 2012 candidate for US Senate) Wil Cardon.
Both candidates look to be running on campaign platforms that seem "counterintuitive" for candidates who are asking voters to put them in charge of the state's elections.
Reagan was the public face of most of the voter suppression provisions in HB2305, a bill so onerous in its design and planned implementation that a multipartisan (and nonpartisan) coalition of activists were able to gather enough signatures to refer the measure to next year's ballot.
Note: she wasn't the final sponsor of HB2305. She tried to push most of the provisions through as individual bills. However, her bills failed so most of the provisions were crammed into HB2305 and the package was railroaded through the legislature in one bill.
With Reagan staking out the "voter suppression" campaign turf, that apparently leaves Cardon with limited options, and he seems to be grabbing the "fraud" ground.
From his campaign's FB page -
Now, I could be wrong, and feel free to correct me if I am, but I think that the person signing Cardon's petition above is just a shade too young to do so.