It is truly incredible and humbling to be able to create tools that are used all over the world. While created as a simple pilot test, our Television Candidate Tracker has become the defacto standard for tracking television coverage of the 2016 US presidential campaign, used by news outlets and researchers across the entire world. That massive user community is constantly sending us suggestions and feature requests and we hear you loud and clear.
As of this morning we have added Libertarian Party candidate Gary Johnson and Green Party candidate Jill Stein to the candidate tracker. From here forward each day their mentions on national television will be tracked the same as the full roster of current and former Republican and Democratic candidates. We also went back and tracked all mentions of Johnson and Stein back to January 1, 2015 and added them to the master timeline so you can compare their historical trends over the same time period as the rest of the field. As you can see from the timeline below neither candidate has received substantial mentions over the last year and a half, though both are on an upswing over the past month.
By the way, for the data scientists, data journalists and academic researchers out there, don't forget you can add "&output=csv" to the end of the Television Candidate Tracker URL to download the data in CSV format, suitable for importing into Microsoft Excel, R or any major statistics package or programming language. Remember that the CSV formatted data records the total raw number of mentions of each candidate by day and you will want to sum the total number of mentions of all candidates and divide each candidate's raw counts by that sum to normalize the counts to percentages. This normalizes for the fact that there tends to be less coverage on weekends, during holidays, etc.