Millions of dollars are flowing into the race for state superintendent of public instruction, driven in large part by outside groups not affiliated with the candidates – $19.4 million to date.

Using data from the California Secretary of State’s Office, EdSource created a web app to explore the finances behind the campaigns of incumbent Tom Torlakson and challenger Marshall Tuck, as well the outside groups spending money to support or oppose them.

Earlier this year, EdSource developed an open source data-driven app that crunches raw campaign finance data. It provides details about which outside special interest groups are financially supporting or opposing the candidates and who is contributing to those committees.

The app visualizes campaign finance data and provides different ways to explore it. EdSource will update the data on a nearly daily basis as new contributions and independent expenditures are reported.

To use the app, click on buttons near the top of the chart. Notes are provided at the bottom of each chart to explain methodology. All questions about the app can be directed to John C. Osborn.

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