History
Political Action Committees and Super PAC Influence
Quick fact
Super PACs emerged after the 2010 Citizens United decision, which allowed corporations and unions to spend unlimited money on independent political ads. Since then, Super PACs have spent billions of dollars in federal elections.
Why this is interesting
In U.S. elections, a candidate can face a million-dollar attack ad blitz funded by a group they've never met. How is that legal? The answer lies in Super PACs.