During the 2012 election cycle, the group spent $30 million targeting House Republicans. Democrats picked up eight seats in that election, and around 1.4 million more votes than GOP candidates, but remained 17 seats short of a majority in the lower chamber.

The fundraising number comes in addition to $34.1 million raised by the DCCC through May, the best off-year numbers in the committee's history. The DCCC closed last month with $11 million cash on hand and $2.1 million in debt, and has seen its coffers buoyed by a string of fundraising appearance by President Obama. 

The Republican counterpart to the NRCC reported $9.5 million cash on hand and debts of $4.75 million at the end of May.