http://www.motherjones.com/politics/2015/12/campaign-finance-regulators-wont-do-their-job-can-watchdogs-force-their-hand
"It's a case that has haunted campaign finance watchdogs for years. The Commission on Hope, Growth, and Opportunity (CHGO) emerged in early 2010 as a nonprofit that would not engage in political work. Then, in the six weeks before the 2010 elections, the group spent about $4 million on political ads across 15 congressional races, all attacking Democrats. But in filings with the IRS, the group maintained that none of its spending was campaign-related, and it did not disclose any of its spending with the Federal Election Commission. Facing complaints from federal regulators, the group folded. Some of its key players—including Scott Reed, now a top strategist at the US Chamber of Commerce, and Wayne Berman, the chief fundraiser for Marco Rubio's presidential campaign—split more than $1 million in leftover funds. No one involved was ever sanctioned. Almost all the money CHGO raised came from a single donor. The group's ability to spring up, use secret money to influence elections, and then disappear provides a template for rich donors who want to pick off or boost candidates without revealing their political activity."