Here in the DC area, the declines in scores is mostly attributable to the massive influx of uneducated, sometimes illiterate, illegals and their kids. They, in turn, bring down everyone else.
California used to have one of the best educational systems in the country, but is now near the bottom. The same thing is happening here.
And more money won’t fix it.
2009/10 was when our TX school district suddenly had a huge influx of illegals. Who was POTUS then?