The Democratic Senatorial Campaign Committee  (DSCC) brought in $4.9 million in May, the largest total they've ever raised during that month in a nonelection year.

The committee has totaled $22.2 million raised for the 2014 cycle, and has $10 million cash on hand for May.

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Those numbers were boosted by help from President Obama, who headlined a handful of DSCC fundraisers during the month.

The DSCC wouldn't say how much it had spent in the last month — or how much debt it was carrying. As of the end of April, the organization had $8.6 million in the bank and $13.8 million in debt.

The organization has spent at least $700,000 in the past month to help Rep. Edward MarkeyEd MarkeySix big off-year elections you might be missing Glasgow summit raises stakes for Biden deal Dozens of Democrats call for spending bill to pass 'climate test' MORE's (D-Mass.) Senate campaign.

“The thought of Mitch McConnellAddison (Mitch) Mitchell McConnellBiden says he's open to altering, eliminating filibuster to advance voting rights Pelosi says GOP senators 'voted to aid and abet' voter suppression for blocking revised elections bill Manchin insists he hasn't threatened to leave Democrats MORE becoming majority leader is enough to motivate most Americans to support our efforts, and we continue to break fundraising records," said DSCC Executive Director Guy Cecil, touting the fundraising numbers. "We still have a very long road to travel, but we are off to a strong start.”

The National Republican Senatorial Committee (NRSC) has yet to announce its May fundraising numbers. 

"Our goal has been to keep showing steady progress each month, raising the resources needed to send Chuck SchumerChuck SchumerManchin meeting with Biden, Schumer in Delaware Progressives' optimism for large reforms dwindles Democratic frustration with Sinema rises MORE [D-N.Y.] and LINO (Leader in Name Only) Harry ReidHarry Mason ReidHarry Reid calls on Democrats to plow forward on immigration Democrats brace for tough election year in Nevada The Memo: Biden's horizon is clouded by doubt MORE [D-Nev.] back in the minority," said Brad Dayspring, NRSC communications director. "Another month of 'progress NRSC.'"

The DSCC has been outpacing the NRSC in fundraising in recent months, though the NRSC narrowly outraised the DSCC in April. At that point, the NRSC had $7 million in the bank and $9.5 million in debt.