New York Times: “In previous election cycles, super PACs — which can raise unlimited donations from corporations and individuals alike — largely channeled money from wealthy donors into political advertising. But now they are branching out into what had seemed a fundamental function of a campaign committee: organizing voters one at a time.”
“The practice of having super PACS, which can be entirely financed by a single billionaire, take over such operations allows campaigns, which may raise only $2,700 from any one donor, to outsource the costly, labor-intensive work of recruiting activists and building lists of supporters. It could also allow second-tier candidates to be more competitive, prolonging the nominating process.”

