Word going around is that Knox County Clerk Foster Arnett Jr., a Republican, will have some competition in August's general election. (He's not expected face an opponent - or one of any merit, anyway - in the May primary.)
Mike Padgett, a Democrat, who was term-limited out of the clerk's office in 2007, has picked up - or plans to up - a nominating petition for the seat. And yes, before you ask, he can run again. Term limits apply to the amount of terms in a row someone can serve, rather than the overall number of terms.
The last time Padgett, as I recall, was really involved in politics was a failed bid in the Democratic Primary for the U.S. Senate in 2008. His son, Mark, lost the city mayoral bid a couple years ago to Madeline Rogero in a non-partisan race.