Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE’s presidential campaign brought in $68.5 million in June, the campaign announced Friday.

The campaign's total haul is about $288 million, and it has $44 million in cash on hand, Clinton's team said in a statement.

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“Our first month of general election fundraising proved to be the best of the campaign,” campaign manager Robby Mook said.

“Thanks to the continued support of nearly 1.6 million people, we have been able to help Democrats build out an organizing infrastructure across the country that will help mobilize millions of voters and help elected progressive candidates up and down the ballot.”

Clinton’s campaign said more than $40.5 million of that total goes directly toward its operations. The remaining cash, about $28 million, will benefit the Democratic National Committee (DNC).

The DNC and state Democratic parties have now received about $90 million in joint fundraising from Clinton, her campaign said, through a joint-fundraising agreement called the Hillary Victory Fund.

It funds and staffs organizing programs in states nationwide aimed at registering voters, recruiting volunteers and increasing turnout for Democrats.

Clinton’s campaign received an average donation of $48 per contributor in June.

The June total was an increase for the campaign, after it brought in about $28 million in May.

Presumptive GOP presidential nominee Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE has not yet released his campaign’s June fundraising totals.

Trump said last week his team was seeking at least $10 million in total fundraising before June’s end.