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Federal Elections Commission (FEC)
Every two years, the Commission publishes Federal Elections, a compilation of the official, certified federal election results obtained from each state’s election office and other official sources. 1996 - .
A guide from The National Archives on what the electoral college is and its functions.
Presidential elections information including the most recent elections.
270towin.com is an interactive Electoral College map for 2016 and a history of Presidential elections in the United States. Since electoral votes are generally allocated on an "all or none" basis by state, the election of a U.S President is about winning the popular vote in enough states to achieve 270 electoral votes, a majority of the 538 that are available.
A new project by the Internet Archive in conjunction with their TV News Archive. Collects political TV ads in crucial early 2016 primary election states and critical media markets. Not clear if it will continue past the primary season. In addition to the videos, you can download a unique list of all ads they've collected and details of the airings, including the candidate, sponsor and type, number of airings, station, location, program type, negativity, and more.
ProPublica Political Advertisements from Facebook
This database, updated daily, contains ads that ran on Facebook and were submitted by thousands of ProPublica users worldwide via a browser extension that automatically collected advertisements on their Facebook pages. Ads are classified using machine learning to identify likely political ads. Includes numerous data fields.
David Leip's Atlas of Presidential Elections
offers the detailed national results for major and minor candidate for U.S. presidential election from 1789 to present. It contains information on candidates, parties, electoral vote total, maps, charts and more.
The American Presidency Project
One of the most comprehensive collections of web resources on the American presidency, including documents, public papers, executive orders, addresses, press conferences, debates, election data, approval ratings, and much more. Data topics include Relations with Congress / Popularity / Public Appearances / Growth of the Executive Branch / Presidential Selection / State of the Union, and Inaugural Address Charts / Presidential Disability.
Created by the National Museum of American History, it provides links to websites on the US presidency and presidents, bibliographies, an interactive timeline, hands-on activities, reference resources, and more.
Commission of Presidential Debates (CPD)
CPD provides transcripts, images, and video (real or enactments) of presidential election debates starting with 1858.
Voting America: United States Politics, 1840-2008
Created at the University of Richmond, this site provides a series of cinematic maps and commentary analyzing presidential elections.
Created by the America Museum of the Moving Images in cooperation with the Political Communication Center, the University of Oklahoma provides a history of presidential campaign commercials starting with 1952.
Presidents of the United States From 1789 -
POTUS, a project of the Internet Public Library, includes biographies and portraits of the president, the first lady, and the vice-president, highlights of the presidency, election results, a list of cabinet officers, and sometimes biographical information about cabinet officers, historical documents, and more.
Presidential Elections 1860-1912
Contains cartoons from Harper's Weekly and other leading journals, Library Congress Collection of American Political Prints; 1860 - 1912.
Presidents of the United States
Created by the Library of Congress, it presents the pages from records of Congressional debates and Congressional action on presidential elections, contested information, and electoral votes from 1789 to 1873.
Contains transcripts of speeches, TV ads, and debates of 12 US general election Presidential campaigns from 1952 through 1996.
Federal Election Commission lists acronyms of political action committees.