As the introduction to Arthur Link's article indicates, the 1920s were patented by the time's politicians as a "return to normalcy." In fact, this phrase was the pillar of Warren Harding's successful presidential bid in 1920.
I hate to delve into a psychological analysis so soon after a break, but it begs the question, what is normal? In a country that was less than 150 years old, is it accurate to label Republican leadership or laissez-faire economics as "normal?" What arguments does Link make for why the Progressive Era failed to carry itself into the 1920s? Which ones are the most convincing?