The Political Typology: In polarized era, deep divisions persist within coalitions of both Democrats and Republicans | Pew Research Center
Views on political parties across Europe | Pew Research Center
Why are liberals "left" and conservatives "right" in politics? - YouTube
U.S. Political Ideology Steady; Conservatives, Moderates Tie
Why Do "Left" And "Right" Mean Liberal And Conservative? - Dictionary.com
Republican Party (United States) - Wikipedia
US election: How left-wing is the Democratic field? - BBC News
How right wing is the Green Party in the United States? - Quora
How The United States Ended Up With Two Right-Wing Parties - YouTube
Republicans vs Democrats: Where do the two main US political parties stand on key issues? - ABC News
US election: How left-wing is the Democratic field?
US election: How left-wing is the Democratic field?
Police three times more likely to use force against left-wing protests: analysis | The Hill
US election: How left-wing is the Democratic field?
Political spectrum | Definition, Chart, Examples, & Left Versus Right | Britannica
Left Wing vs Right Wing: Distinctions in the Political Spectrum
Democrat vs Republican: Major Differences between US parties
Pew study finds Americans aren't 2 parties but 9 distinct groups : NPR
US election: How left-wing is the Democratic field?
2. Americans are divided by party in the sources they turn to for political news | Pew Research Center
Younger, older generations divided in partisanship and ideology | Pew Research Center
Independent Party ID Tied for High; Democratic ID at New Low
Left vs. Right (US) — Information is Beautiful
Communist Party of the United States of America (CPUSA) | Britannica
US election: How left-wing is the Democratic field?
