While in Congress, he served as chairman of the House Judiciary Committee from 1919 to 1923. Although often considered the author of the Volstead Act, he collaborated with Wayne Wheeler of the Anti-Saloon League, who conceived and largely drafted the bill. However, Volstead sponsored the bill and championed, promoted and facilitated its passage.[1] He also helped author the Capper–Volstead Act, which enabled farmers to form locally owned cooperatives without fear of prosecution under the Sherman Antitrust Act. The law is still in effect.
Upon repeal of Prohibition in 1933, Volstead returned to Granite Falls, Minnesota, where he resumed the private practice of law.
He died in 1947. Volstead's former home, located at 163 Ninth Avenue, Granite Falls, Minnesota, is a National Historic Landmark. He is buried in the Granite Falls city cemetery.[2]