Paul Ryan's budget takes us back to 1950. That's not a metaphor. That's a statistic.
When the CBO projected Ryan's plan four decades into the future, it concluded that the size of government would shrink to 15% of the economy by 2050. How small is 15%? As a share of GDP, it would be the smallest government since 1950/'51. Here's Ryan's proposed 2050 budget and our real 1950 budget, side by side. The Y axis is percent-share of GDP.