South Dakota House District 29

Per the campaign site.

Gary L. Cammack is a rancher and business owner who operates Cammack Ranch Supply in Union Center with his wife, Amy, per his campaign site. He previously served in the South Dakota House of Representatives for District 29 from 2013 to 2015 and in the South Dakota Senate for District 29 from 2015 to 2023, including as Senate Majority Leader from 2021 to 2023, per the Legislature's official directory. He was inducted into the South Dakota Hall of Fame in 2021 for his community impact through Cammack Ranch Supply and his public service, per the Hall of Fame.

Gary Deering is a fourth-generation rancher from Hereford, South Dakota, whose family has worked the land since 1911, per the Rapid City Post. He holds a Range Management degree with an Economics minor from South Dakota State University, per the same report. He chairs the Meade County Commission and previously served as president of the South Dakota Stockgrowers Association and the South Dakota Beef Industry Council, per the Rapid City Post. No campaign website was found as of September 20, 2026.