Yep. Check out education spending and the number of teachers in 1960, 1970, 1980, 1990, 2000, and 2008.
Each decade more and more and more of the private sector is bitten off and gifted to the unions to gift back to the Democratic party, because the Democratic party politicos spew nonsense about how we need student:teacher ratios to decline significantly from where they were 10 years prior.
Seriously? You're basing a theory of Democratic leftward swing on
education spending? And you're calling the student:teacher ratio nonsense? And do you even pay attention to where more spending comes from these days (hint: it's not unions)?