Sheldon Adelson, the billionaire casino magnate and emblem of the Citizens United-era of campaign finance, spent gobs of money on the 2012 elections – more money than anyone else in American history.
Exactly how much, you ask?
We don’t really know, and it’s likely we never will. Many of the groups that spent the most on the election aren’t required to report their donors. But thanks to recent campaign finance filings, we can get a better idea.