Who becomes president is decided by the voters. Who stays in the race for president, however, is largely decided by contributors. Here, we track the way contributions from PACs, political parties, and individuals are shaping the 2016 field.
Update 8/6/2015: We've added a note explaining how our contributor counts only include donors who gave more than $200, per FEC itemization rules.
This article is from the archive of our partner National Journal.