Priorities USA Action spent $23.7 million in June, mostly on ads savaging Donald Trump, according to its latest Federal Election Commission report released on Wednesday. | Getty Clinton super PAC dropped $23 million in June Priorities USA ended the month with $40 million in the bank.

The main super PAC supporting Hillary Clinton dove into general-election mode last month, spending almost as much in June as in the three preceding months combined.

Priorities USA Action spent $23.7 million in June, mostly on ads savaging Donald Trump, according to its latest Federal Election Commission report released on Wednesday. The group also raised another $11.9 million, topping $100 million for the cycle so far and ending the month with $40.2 million cash on hand.


Investor Donald Sussman gave $2 million, and California philanthropist Laure Woods contributed $1,691,421. California broker/dealer Essex National Securities pitched in $1,686,306. Philip Munger, a New York investor whose father, Charlie, is vice chairman of Berkshire Hathaway, gave $1 million, as did union groups Working for Working Americans, NEA Advocacy Fund and American Federation of State, County and Municipal Employees (AFSCME), and Diamond Resorts International CEO Stephen Cloobeck.

Other prominent donors include hedge fund investor David E. Shaw, Mary Kathryn and Jay Robert Pritzker, and Grosvenor Capital Management Chairman Michael Sacks.

Priorities USA spent $4.7 million to reserve TV airtime, $769,000 on research, $738,000 on media consultants and $100,000 on salary to 17 people. Among its biggest vendors were ad buyer Targeted Platform Media, Jefrey Pollock and Jon Silvan's Global Strategy Group, Geoff Garin's Garin Strategic Research Group and Latino-focused Chambers Lopez Strategies.

The super PAC has spent more than $30 million attacking Trump so far, notably with a TV spot contrasting Trump's mocking of a disabled reporter with a family discussing their disabled daughter.

The super PAC also refunded a $200,000 donation from Suffolk Construction Company, which, as a federal contractor, isn't allowed to contribute.