Below are some linked searches that may be of interest:

• American Establishment (keyword search)
• Anti-establishment AND United States (keyword search)
• Political culture -- United States (subject search)
• United States -- Social conditions -- 1945- (subject search)
• United States -- Politics and government -- 20th century (subject search)
• Right and left (Political science) -- History -- 20th century (subject search)
• Political culture -- United States -- History -- 20th century (subject search)

Important
If you only want to search for materials in the library catalog and not an additional database of millions of article citations make sure you select the option Books & Multimedia on the library home page or Books, Images, and More inside NUsearch:
Library home page

In NUsearch:

Important: If the libraries do not hold a source that you need (book, article, video) use Interlibrary Loan to request from another library. Use WorldCat to search for works at other libraries.

Important: The Hathi Trust is also a great source for finding books and other sources.