Priorities USA Action - a pro-Hillary Clinton super PAC - is targeting Donald Trump in battleground states. | Getty Clinton super PAC raised $12.1 million in May May was the biggest month of 2016 for Priorities USA.

The main super PAC supporting Hillary Clinton’s presidential campaign had its biggest month of 2016 in May, bringing in $12.1 million — $3.5 million more than the previous month — as the now-presumptive Democratic nominee neared the nomination in her primary battle against Bernie Sanders and started taking on Donald Trump.

Priorities USA Action started June sitting on roughly $52 million in cash on hand after bringing in roughly $88 million, with commitments of another $45 million, for the election cycle, the group told POLITICO on Monday.


May’s haul — led by $3 million from Chicago media executive Fred Eychaner — comes as the group is engaged in a major anti-Trump ad onslaught in eight battleground states that’s expected to last until election day: it has reserved roughly $147 million between television, radio, and digital platforms.

Looking to project an aggressive posture against the presumptive GOP nominee, it added North Carolina — a state Barack Obama won in 2008 but not 2012 — to its buys earlier this month, expanding its list from Colorado, Florida, Iowa, Ohio, Nevada, New Hampshire, and Virginia.

“In the last few weeks Donald Trump accused President Obama of working with ISIS, took a victory lap following a national tragedy, and mimed shooting someone at one of his events,” said Priorities’ chief strategist, Guy Cecil. “Priorities USA is not going to let this man anywhere near the White House because he is far too dangerous and divisive to ever be President of the United States. We will not let up in our efforts to defeat him this November, and are grateful for our continued fundraising success."

The group’s television ads have thus far sought to paint Trump as divisive and dangerous, pointing out his harsh rhetoric about women and zeroing in on his mocking of a reporter’s disabilities by featuring an Ohio couple whose daughter has spina bifida. A new spot released on Sunday describes him as “too dangerous for America,” quoting him on foreign policy.

Clinton’s campaign has also started bombarding the real estate developer with ads in the same eight swing states, but Trump has thus far not responded in kind — and the constellation of super PACs surrounding Trump have yet to make significant moves either.