^N. Scott, Arnold (7 tháng 4 năm 2011). Imposing Values: Liberalism and Regulation. Oxford University Press. tr. 3. ISBN978-0-19-970529-0. Truy cập ngày 27 tháng 11 năm 2015."Modern liberalism occupies the left-of-center in the traditional political spectrum and is represented by the Democratic Party in the United States".
^Starr, Paul (2012). “Center-Left Liberalism”. The Oxford Companion to American Politics. Truy cập ngày 13 tháng 3 năm 2017.
^Larry E. Sullivan. The SAGE glossary of the social and behavioral sciences (2009) p 291, "This liberalism favors a generous welfare state and a greater measure of social and economic equality. Liberty thus exists when all citizens have access to basic necessities such as education, health care, and economic opportunities."
^John McGowan, American Liberalism: An Interpretation for Our Time (2007)
^Starr P. (March 1, 2007). "War and Liberalism." The New Republic."“Starr, P. (1 March 2007). "War and Liberalism". The New Republic”. Truy cập ngày 2 tháng 8 năm 2007. "Liberalism wagers that a state ... can be strong but constrained – strong because constrained. ... Rights to education and other requirements for human development and security aim to advance the opportunity and personal dignity of minorities and to promote a creative and productive society. To guarantee those rights, Democrats support a wider social and economic role for the state, counterbalanced by more robust guarantees of civil liberties and a wider social system of checks and balances anchored in an independent press and pluralistic society."
^Hugo Helco, in The Great Society and the High Tide of Liberalism, "In (the 1970s) the American government began telling Americans what they could and could not do with regard to abortions, capital punishment, and bilingual education. The 1970s also brought new and more sweeping national regulations to deal with environmental challenges, consumer protection, workplace safety, gender discrimination, the rights of those with disabilities, and political spending.", p. 58, Sidney M. Milkis & Jerome M. Mileur, editors, University of Massachusetts Press, 2005, ISBN978-1-55849-493-0
^[file:///Users/marcywinograd/Downloads/2016_DNC_Platform.pdf “2016 Democratic Party Platform”] Kiểm tra giá trị |url= (trợ giúp)(PDF). DNC. 2016.[liên kết hỏng]