The average GDP growth over this time is 3.56% (I’m rounding off the actual numbers used). Under GOP presidents it was 1.83%, under Dem presidents it was 5.07%–that’s 178% higher.
This suggests a very simple Democratic Plan on how to save Social Security: Elect Democratic Presidents from now until the end of time. That will ensure high levels of GDP growth, which will mean plenty of money in the Social Security trust fund, and absolutely nothing to worry about.
More there, but that’s the gist of it.