Super-PACs and dark money: A guide to the new world of campaign finance

Get ready for yet another “most expensive election in history,” Kim Barker and Marian Wang say at ProPublica–this one fueled with massive amounts of money coming from “more players with more opportunities to hide the source.”

Encouraged by recent court decisions, Republicans and Democrats both have been raising vast sums from wealthy donors freed from contribution limits and, in some cases, able to conceal their identities. Barker and Wang offer a primer on this world of 501(c)s, 527s, PACs and super-PACS. Coming next: The super-duper PAC?