Primary sources include (but are not limited to) newspapers, statistics, documentaries, photos, interviews, speeches, autobiographies, diaries, correspondence/letters, government documents.
Newspapers
Tips for searching newspapers:
(1) limit your search to publication date or date range. For example, if you are looking for newspaper articles/reports before the election day Nov. 8, 1960, you can try selecting date range January 1, 1960 --Nov. 8, 1960.
(2) search your keyword(s) by title or headline or abstract (to avoid getting too many irrelevant results )
Old Newspapers (before 1980s)
--New York Times: Historical (ProQuest)(1851--2018)
--Sacramento Bee (NewsBank)(1857--today)
--Los Angeles Times: Historical (ProQuest) (1881--1996)
--California Digital Newspaper Collection (1846--1922)
--Chronicling America: Historic American Newspapers (1836--1922)
Current newspapers
--California Newspapers (NewsBank)
--Chicago Tribune
--Los Angeles Times (ProQuest)
--New York Times (ProQuest)
--ProQuest Global Newsstream (ProQuest)
--ProQuest Recent Newspapers: Major U.S. Dailies
--Sacramento Bee (NewsBank)
--Washington Post (ProQuest)
Statistics
Suggested reference for data / statistics
America Votes (v.1-v. 31) (located on the 2nd floor reference section, Call number JK1967 .A8)
Online access:
American Votes 30
America Votes 31 (2013-2-14)
America Votes 32 (2015-2016)
America Votes 33 (2017-2018)
Historical Statistics of the United States, 1789-1945 (2 NORTH Reference ; HA202 .A385)
Statistical Abstract of the United States (ProQuest)
Statista
Census Bureau
Media
Films On Demand (Films Media Group)
Films on Demand provides full video access to thousands of video titles in Humanities & Social Sciences, Business & Economics, Health & Medicine, Science & Mathematics, and Archival Films & Newsreels, Guidance & Counseling and many TV programs such as NBC News, PBS, BBC and more.