Cochran, 81, a former Republican U.S. senator from Mississippi, retired last year.
Tonsager served as chairman of Farm Credit Administration board and USDA undersecretary for rural development.
Ryan LeGrand named U.S. Grains Council president and CEO.
He has been acting CEO since January 2019.
Harden formerly worked for USDA and Corteva Agriscience.
Chilton, 58, hosted the show, "Boom Bust," for RT America is recent years.
Hanes works for U.S. Meat Export Federation and is chairman of the U.S. Agricultural Export Development Council.
Tired of fighting E-2 immigration law, the Mulders' neighbors lead the charge for change.
Arthur Neal has been deputy administrator of AMS Transportation and Marketing Program since 2011.