The controversy over the Internal Revenue Service's targeting of Tea Party groups has put a spotlight on the non-profit groups that played such a prominent role in the 2012 campaign. The groups have become popular conduits for political funds because, unlike political action committees, they do not have to disclose donors to the Federal Election Commission. While most of the groups whose applications the IRS slow-walked were relatively small givers, many groups that did land non-profit status gave big. Check out this page to see the "social welfare" non-profits who made political expenditures in the 2012 election cycle. Because of the interest, the Sunlight Foundation has decided to update the Return on Investment feature we first published the day after the election. This analysis looks at more than 100,000 lines of itemized expenditures made by outside spending groups (super PACS as well as 501(c) non profits) and calculates the amount of money that went toward the desired result on Election Day. Our update accounts for updated filings and amendments at the Federal Election Commission and our own data cleanup. For more details on each group listed below click on the “see ROI breakdown” button. You can sort by general election spending, candidate, support or oppose, and election result.