The narrative of ever-ballooning government is almost entirely driven by entitlement spending (i.e. me writing a check that gets immediately sent out again as a check to grandma). Now it's a somewhat philosophical question, but I don't think it's accurate to call increased Social Security or Medicare expenditures an "expansion of the state." When I think of the "state" I think of layers of bureaucracy, weapons programs, etc. I.e. money the government has discretionary control over. The long-term trend of that is one of decline, not growth.