Priorities USA Action is a progressive political action committee and is the largest Democratic Party super PAC. Founded in 2011, it supported Barack Obama's 2012 re-election campaign. It was the primary super PAC supporting Hillary Clinton's 2016 presidential campaign. It focused mainly on high-dollar donors. As of September 2016, it had amassed $132 million in support of Clinton. The top six donors to the super PAC have given $43.5 million, which is a third of the money collected by Priorities USA Action in the 2016 election cycle. The super PAC raised $21.7 million in August 2016, marking its largest monthly fundraising haul.