People from United-states most active in food-agriculture

This is a list of the top 10 people from United-states most active in food-agriculture. Tom Vilsack is the leader of it, but if you think Tom Vilsack is not corrupt or is not the greatest you may contribute with some data. On the second place is who is close to Tom Vilsack and maybe soon leads the list of most corrupt or greatest people. Make the list of people from United-states most active in food-agriculture better and vote.