Argument: Dems believe in ensuring equal opportunity through social programs
Paul Shlesinger. "Democrat vs. Republican: Political philosophies." Helium: "They believe that the role of the Federal government is to ensure equality. This which translates into support for tax increases, particularly on the wealthy and big businesses, which can be used by the government to fund social programs designed to help the poor and middle class. Labor unions and minority groups are often attracted to the party based on its fiscal philosophy prompting equality."
"Liberal Philosophy, Conservative Philosophy and the Great American Center." OneMind. May 21st, 2010: "Liberals believe in equality of opportunity implemented through government regulation and laws where necessary."