A former top economist in the Obama administration poured cold water on Vice President Kamala Harris’ economic plan to combat price-gouging at grocery stores. While year-over-year inflation has dropped to its lowest level in more than three years, food prices remain stubbornly high — 21 percent above where they were in 2021. Harris on Friday proposed a federal ban on price-gouging in the food industry. Want more breaking political news? Click for the latest headlines at Raw Story. “My plan will include new penalties for opportunistic companies that exploit crises and break the rules,” Harris s…