You could have actually paid attention to what she said instead of taking the MAGA approach where you only hear what you want to hear and jettison everything else. Her plan for grocery price controls was about emergency situations to prevent gouging. Every single state in the union which has political representation that YOU like already has such laws in place, they just aren't enforced unless there's political theater to be made.

The simple fact of the matter is that vendors will sell their product anyway. It takes time to bring product to the market and most food is highly perishable. To the extent that the US subsidizes agriculture, there's absolutely no excuse for gouging during emergencies.