Data Archive



Relations with Congress

Success of the President's Party in Congressional Elections



News Conferences

Growth of the Executive Branch

Presidential Selection

Conventions & Nominations

2008 Election

2012 Election

2016 Election

2020 Election

Newspaper Editorial Endorsements

Popular and Electoral Vote Mandates (Margin of Victory)

Voter Turnout in Presidential Elections

Poll Accuracy Record in Presidential Elections

Financing Presidential General Elections

% of Convention Delegates Selected through Primary Elections Democratic | Republican

Length in Words of State of the Union Messages and Addresses

Presidential Disability

First Ladies