Noah Veltman put together a history of newspapers’ presidential endorsements since 1980 for about 100 publications. There’s a simple table showing Republican, Democrat, or other endorsement over the years, and you can download the data too.
Newspaper endorsements since 1980
Second Edition
Visualize This: The FlowingData Guide to Design, Visualization, and Statistics (2nd Edition)
Visualize This: The FlowingData Guide to Design, Visualization, and Statistics (2nd Edition)
New tools, refined process.
