"The view of a minimalist federal government during the eighteenth and nineteenth centuries was likely based on a strict interpretation of the Constitution...  The government expanded in the 1930s for two reasons: First, its source of funds had increased with passage of the Sixteenth Amendment.... The second reason was a national ideological shift toward greater government. This shift was reflected by, and perhaps motivated by, the writings of Karl Marx and Henry George in the mid-1800s and later by women's increased participation in the electoral process."