2016 Republican presidential candidate Jeb Bush greets supporters during a campaign rally at the Maitland Venue in Maitland, Fla., Monday, July 27, 2015.
2016 Republican presidential candidate Jeb Bush greets supporters during a campaign rally at the Maitland Venue in Maitland, Fla., Monday, July 27, 2015. Joe Burbank AP
2016 Republican presidential candidate Jeb Bush greets supporters during a campaign rally at the Maitland Venue in Maitland, Fla., Monday, July 27, 2015. Joe Burbank AP

2016’s must-have presidential campaign tool: Super PACs

July 30, 2015 5:34 PM