Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE’s presidential campaign raised $15.6 million in the month of May, ending the month with more than $9.2 million in cash on hand, Federal Election Commission reports show.

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The influx of cash came even as the Democratic primary for president wound down, with 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 becoming the party's presumptive nominee earlier this month.

Hillary Clinton’s campaign raised $28.28 million in May and has more than $42 million in cash on hand, according to monthly fundraising totals released on Monday afternoon.

Her campaign noted, in a release breaking down the fundraising, that the average donation was about $44.

Meanwhile, presumptive GOP 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's campaign finished May with just $1.3 million in the bank. Trump raised just $3.1 million for his campaign during May.