Everyone but progressives knew that. (Or they knew that but their goal was something different.)
https://www.heritage.org/education/report/mass-deception-meaningful-accountability-brighter-future-k-12-education
Spending up 37% above inflation from 2000-2020, but spending doesn't translate to results. Missouri, for example, increased spending 28% after inflation, with results dropping 0.4%.
After we dismantle the Department of Education, there's a whole lot of education establishment for states to dismantle.